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Finding the Fourth Proportional to 30,482.52, 45,687.24 and 15,698.40

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Solution

The fourth proportional to 30,482.52, 45,687.24 and 15,698.40 is: 23,528.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.52 : 45,687.24 = 15,698.40 : x
  2. Step 2: Convert to fraction form
    30,482.52/45,687.24 = 15,698.40/x
  3. Step 3: Cross multiply
    30,482.52x = 45,687.24 × 15,698.40
  4. Step 4: Simplify right side
    30,482.52x = 717,216,568.42
  5. Step 5: Solve for x
    x = 717,216,568.42/30,482.52
  6. Step 6: Final answer
    x = 23,528.78

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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.