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Finding the Fourth Proportional to 30,622.65, 45,934.19 and 8,437.23

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Solution

The fourth proportional to 30,622.65, 45,934.19 and 8,437.23 is: 12,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.65 : 45,934.19 = 8,437.23 : x
  2. Step 2: Convert to fraction form
    30,622.65/45,934.19 = 8,437.23/x
  3. Step 3: Cross multiply
    30,622.65x = 45,934.19 × 8,437.23
  4. Step 4: Simplify right side
    30,622.65x = 387,557,283.71
  5. Step 5: Solve for x
    x = 387,557,283.71/30,622.65
  6. Step 6: Final answer
    x = 12,655.90

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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.