Home / 42,639.46-63,959.35-13,057.18

Finding the Fourth Proportional to 42,639.46, 63,959.35 and 13,057.18

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Solution

The fourth proportional to 42,639.46, 63,959.35 and 13,057.18 is: 19,585.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,639.46 : 63,959.35 = 13,057.18 : x
  2. Step 2: Convert to fraction form
    42,639.46/63,959.35 = 13,057.18/x
  3. Step 3: Cross multiply
    42,639.46x = 63,959.35 × 13,057.18
  4. Step 4: Simplify right side
    42,639.46x = 835,128,745.63
  5. Step 5: Solve for x
    x = 835,128,745.63/42,639.46
  6. Step 6: Final answer
    x = 19,585.82

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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.