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Finding the Fourth Proportional to 22,689.64, 34,038.08 and 7,902.76

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Solution

The fourth proportional to 22,689.64, 34,038.08 and 7,902.76 is: 11,855.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.64 : 34,038.08 = 7,902.76 : x
  2. Step 2: Convert to fraction form
    22,689.64/34,038.08 = 7,902.76/x
  3. Step 3: Cross multiply
    22,689.64x = 34,038.08 × 7,902.76
  4. Step 4: Simplify right side
    22,689.64x = 268,994,777.10
  5. Step 5: Solve for x
    x = 268,994,777.10/22,689.64
  6. Step 6: Final answer
    x = 11,855.40

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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.