Home / 42,398.06-58,487.22-28,781.35

Finding the Fourth Proportional to 42,398.06, 58,487.22 and 28,781.35

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Solution

The fourth proportional to 42,398.06, 58,487.22 and 28,781.35 is: 39,703.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,398.06 : 58,487.22 = 28,781.35 : x
  2. Step 2: Convert to fraction form
    42,398.06/58,487.22 = 28,781.35/x
  3. Step 3: Cross multiply
    42,398.06x = 58,487.22 × 28,781.35
  4. Step 4: Simplify right side
    42,398.06x = 1,683,341,003.13
  5. Step 5: Solve for x
    x = 1,683,341,003.13/42,398.06
  6. Step 6: Final answer
    x = 39,703.26

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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.