Home / 39,139.53-53,999.76-22,142.13

Finding the Fourth Proportional to 39,139.53, 53,999.76 and 22,142.13

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Solution

The fourth proportional to 39,139.53, 53,999.76 and 22,142.13 is: 30,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.53 : 53,999.76 = 22,142.13 : x
  2. Step 2: Convert to fraction form
    39,139.53/53,999.76 = 22,142.13/x
  3. Step 3: Cross multiply
    39,139.53x = 53,999.76 × 22,142.13
  4. Step 4: Simplify right side
    39,139.53x = 1,195,669,705.89
  5. Step 5: Solve for x
    x = 1,195,669,705.89/39,139.53
  6. Step 6: Final answer
    x = 30,548.90

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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.