Home / 42,555.22-63,831.86-11,390.46

Finding the Fourth Proportional to 42,555.22, 63,831.86 and 11,390.46

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Solution

The fourth proportional to 42,555.22, 63,831.86 and 11,390.46 is: 17,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,555.22 : 63,831.86 = 11,390.46 : x
  2. Step 2: Convert to fraction form
    42,555.22/63,831.86 = 11,390.46/x
  3. Step 3: Cross multiply
    42,555.22x = 63,831.86 × 11,390.46
  4. Step 4: Simplify right side
    42,555.22x = 727,074,248.06
  5. Step 5: Solve for x
    x = 727,074,248.06/42,555.22
  6. Step 6: Final answer
    x = 17,085.43

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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.