Home / 42,587.22-63,905.38-19,213.62

Finding the Fourth Proportional to 42,587.22, 63,905.38 and 19,213.62

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Solution

The fourth proportional to 42,587.22, 63,905.38 and 19,213.62 is: 28,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,587.22 : 63,905.38 = 19,213.62 : x
  2. Step 2: Convert to fraction form
    42,587.22/63,905.38 = 19,213.62/x
  3. Step 3: Cross multiply
    42,587.22x = 63,905.38 × 19,213.62
  4. Step 4: Simplify right side
    42,587.22x = 1,227,853,687.28
  5. Step 5: Solve for x
    x = 1,227,853,687.28/42,587.22
  6. Step 6: Final answer
    x = 28,831.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.