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Finding the Fourth Proportional to 22,689.52, 34,044.06 and 7,890.40

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Solution

The fourth proportional to 22,689.52, 34,044.06 and 7,890.40 is: 11,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.52 : 34,044.06 = 7,890.40 : x
  2. Step 2: Convert to fraction form
    22,689.52/34,044.06 = 7,890.40/x
  3. Step 3: Cross multiply
    22,689.52x = 34,044.06 × 7,890.40
  4. Step 4: Simplify right side
    22,689.52x = 268,621,251.02
  5. Step 5: Solve for x
    x = 268,621,251.02/22,689.52
  6. Step 6: Final answer
    x = 11,839.00

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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.