Home / 22,784.16-31,442.16-13,225.92

Finding the Fourth Proportional to 22,784.16, 31,442.16 and 13,225.92

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Solution

The fourth proportional to 22,784.16, 31,442.16 and 13,225.92 is: 18,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,784.16 : 31,442.16 = 13,225.92 : x
  2. Step 2: Convert to fraction form
    22,784.16/31,442.16 = 13,225.92/x
  3. Step 3: Cross multiply
    22,784.16x = 31,442.16 × 13,225.92
  4. Step 4: Simplify right side
    22,784.16x = 415,851,492.79
  5. Step 5: Solve for x
    x = 415,851,492.79/22,784.16
  6. Step 6: Final answer
    x = 18,251.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.