Home / 42,170.12-63,266.16-12,587.97

Finding the Fourth Proportional to 42,170.12, 63,266.16 and 12,587.97

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Solution

The fourth proportional to 42,170.12, 63,266.16 and 12,587.97 is: 18,885.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,170.12 : 63,266.16 = 12,587.97 : x
  2. Step 2: Convert to fraction form
    42,170.12/63,266.16 = 12,587.97/x
  3. Step 3: Cross multiply
    42,170.12x = 63,266.16 × 12,587.97
  4. Step 4: Simplify right side
    42,170.12x = 796,392,808.55
  5. Step 5: Solve for x
    x = 796,392,808.55/42,170.12
  6. Step 6: Final answer
    x = 18,885.24

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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.