Home / 39,055.20-53,896.23-21,150.24

Finding the Fourth Proportional to 39,055.20, 53,896.23 and 21,150.24

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Solution

The fourth proportional to 39,055.20, 53,896.23 and 21,150.24 is: 29,187.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.20 : 53,896.23 = 21,150.24 : x
  2. Step 2: Convert to fraction form
    39,055.20/53,896.23 = 21,150.24/x
  3. Step 3: Cross multiply
    39,055.20x = 53,896.23 × 21,150.24
  4. Step 4: Simplify right side
    39,055.20x = 1,139,918,199.60
  5. Step 5: Solve for x
    x = 1,139,918,199.60/39,055.20
  6. Step 6: Final answer
    x = 29,187.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.