Home / 42,505.32-58,669.70-28,358.13

Finding the Fourth Proportional to 42,505.32, 58,669.70 and 28,358.13

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Solution

The fourth proportional to 42,505.32, 58,669.70 and 28,358.13 is: 39,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,505.32 : 58,669.70 = 28,358.13 : x
  2. Step 2: Convert to fraction form
    42,505.32/58,669.70 = 28,358.13/x
  3. Step 3: Cross multiply
    42,505.32x = 58,669.70 × 28,358.13
  4. Step 4: Simplify right side
    42,505.32x = 1,663,762,837.87
  5. Step 5: Solve for x
    x = 1,663,762,837.87/42,505.32
  6. Step 6: Final answer
    x = 39,142.46

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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.