Home / 42,515.44-63,763.42-12,521.92

Finding the Fourth Proportional to 42,515.44, 63,763.42 and 12,521.92

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Solution

The fourth proportional to 42,515.44, 63,763.42 and 12,521.92 is: 18,780.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,515.44 : 63,763.42 = 12,521.92 : x
  2. Step 2: Convert to fraction form
    42,515.44/63,763.42 = 12,521.92/x
  3. Step 3: Cross multiply
    42,515.44x = 63,763.42 × 12,521.92
  4. Step 4: Simplify right side
    42,515.44x = 798,440,444.17
  5. Step 5: Solve for x
    x = 798,440,444.17/42,515.44
  6. Step 6: Final answer
    x = 18,780.01

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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.