Home / 42,555.80-63,833.68-11,390.24

Finding the Fourth Proportional to 42,555.80, 63,833.68 and 11,390.24

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Solution

The fourth proportional to 42,555.80, 63,833.68 and 11,390.24 is: 17,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,555.80 : 63,833.68 = 11,390.24 : x
  2. Step 2: Convert to fraction form
    42,555.80/63,833.68 = 11,390.24/x
  3. Step 3: Cross multiply
    42,555.80x = 63,833.68 × 11,390.24
  4. Step 4: Simplify right side
    42,555.80x = 727,080,935.28
  5. Step 5: Solve for x
    x = 727,080,935.28/42,555.80
  6. Step 6: Final answer
    x = 17,085.35

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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.