Home / 38,981.60-58,482-11,282.40

Finding the Fourth Proportional to 38,981.60, 58,482 and 11,282.40

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Solution

The fourth proportional to 38,981.60, 58,482 and 11,282.40 is: 16,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,981.60 : 58,482 = 11,282.40 : x
  2. Step 2: Convert to fraction form
    38,981.60/58,482 = 11,282.40/x
  3. Step 3: Cross multiply
    38,981.60x = 58,482 × 11,282.40
  4. Step 4: Simplify right side
    38,981.60x = 659,817,316.80
  5. Step 5: Solve for x
    x = 659,817,316.80/38,981.60
  6. Step 6: Final answer
    x = 16,926.38

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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.