Home / 39,055.94-53,897.21-21,150.96

Finding the Fourth Proportional to 39,055.94, 53,897.21 and 21,150.96

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Solution

The fourth proportional to 39,055.94, 53,897.21 and 21,150.96 is: 29,188.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,055.94 : 53,897.21 = 21,150.96 : x
  2. Step 2: Convert to fraction form
    39,055.94/53,897.21 = 21,150.96/x
  3. Step 3: Cross multiply
    39,055.94x = 53,897.21 × 21,150.96
  4. Step 4: Simplify right side
    39,055.94x = 1,139,977,627.07
  5. Step 5: Solve for x
    x = 1,139,977,627.07/39,055.94
  6. Step 6: Final answer
    x = 29,188.33

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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.