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Finding the Fourth Proportional to 22,047.76, 30,423.80 and 12,488.08

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Solution

The fourth proportional to 22,047.76, 30,423.80 and 12,488.08 is: 17,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,047.76 : 30,423.80 = 12,488.08 : x
  2. Step 2: Convert to fraction form
    22,047.76/30,423.80 = 12,488.08/x
  3. Step 3: Cross multiply
    22,047.76x = 30,423.80 × 12,488.08
  4. Step 4: Simplify right side
    22,047.76x = 379,934,848.30
  5. Step 5: Solve for x
    x = 379,934,848.30/22,047.76
  6. Step 6: Final answer
    x = 17,232.36

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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.