Home / 42,405.76-63,601.44-11,244.16

Finding the Fourth Proportional to 42,405.76, 63,601.44 and 11,244.16

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Solution

The fourth proportional to 42,405.76, 63,601.44 and 11,244.16 is: 16,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,405.76 : 63,601.44 = 11,244.16 : x
  2. Step 2: Convert to fraction form
    42,405.76/63,601.44 = 11,244.16/x
  3. Step 3: Cross multiply
    42,405.76x = 63,601.44 × 11,244.16
  4. Step 4: Simplify right side
    42,405.76x = 715,144,767.59
  5. Step 5: Solve for x
    x = 715,144,767.59/42,405.76
  6. Step 6: Final answer
    x = 16,864.33

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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.