Home / 37,981.20-56,966.40-13,022.40

Finding the Fourth Proportional to 37,981.20, 56,966.40 and 13,022.40

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Solution

The fourth proportional to 37,981.20, 56,966.40 and 13,022.40 is: 19,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,981.20 : 56,966.40 = 13,022.40 : x
  2. Step 2: Convert to fraction form
    37,981.20/56,966.40 = 13,022.40/x
  3. Step 3: Cross multiply
    37,981.20x = 56,966.40 × 13,022.40
  4. Step 4: Simplify right side
    37,981.20x = 741,839,247.36
  5. Step 5: Solve for x
    x = 741,839,247.36/37,981.20
  6. Step 6: Final answer
    x = 19,531.75

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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.