Home / 19,962.30-29,919.15-8,857.20

Finding the Fourth Proportional to 19,962.30, 29,919.15 and 8,857.20

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Solution

The fourth proportional to 19,962.30, 29,919.15 and 8,857.20 is: 13,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962.30 : 29,919.15 = 8,857.20 : x
  2. Step 2: Convert to fraction form
    19,962.30/29,919.15 = 8,857.20/x
  3. Step 3: Cross multiply
    19,962.30x = 29,919.15 × 8,857.20
  4. Step 4: Simplify right side
    19,962.30x = 264,999,895.38
  5. Step 5: Solve for x
    x = 264,999,895.38/19,962.30
  6. Step 6: Final answer
    x = 13,275.02

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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.