Home / 39,071.34-53,918.19-21,165.93

Finding the Fourth Proportional to 39,071.34, 53,918.19 and 21,165.93

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Solution

The fourth proportional to 39,071.34, 53,918.19 and 21,165.93 is: 29,208.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.34 : 53,918.19 = 21,165.93 : x
  2. Step 2: Convert to fraction form
    39,071.34/53,918.19 = 21,165.93/x
  3. Step 3: Cross multiply
    39,071.34x = 53,918.19 × 21,165.93
  4. Step 4: Simplify right side
    39,071.34x = 1,141,228,635.27
  5. Step 5: Solve for x
    x = 1,141,228,635.27/39,071.34
  6. Step 6: Final answer
    x = 29,208.84

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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.