Home / 39,007.18-53,829.69-21,102.13

Finding the Fourth Proportional to 39,007.18, 53,829.69 and 21,102.13

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Solution

The fourth proportional to 39,007.18, 53,829.69 and 21,102.13 is: 29,120.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,007.18 : 53,829.69 = 21,102.13 : x
  2. Step 2: Convert to fraction form
    39,007.18/53,829.69 = 21,102.13/x
  3. Step 3: Cross multiply
    39,007.18x = 53,829.69 × 21,102.13
  4. Step 4: Simplify right side
    39,007.18x = 1,135,921,116.24
  5. Step 5: Solve for x
    x = 1,135,921,116.24/39,007.18
  6. Step 6: Final answer
    x = 29,120.82

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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.