Home / 19,521.68-29,278.13-8,981.58

Finding the Fourth Proportional to 19,521.68, 29,278.13 and 8,981.58

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Solution

The fourth proportional to 19,521.68, 29,278.13 and 8,981.58 is: 13,470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,521.68 : 29,278.13 = 8,981.58 : x
  2. Step 2: Convert to fraction form
    19,521.68/29,278.13 = 8,981.58/x
  3. Step 3: Cross multiply
    19,521.68x = 29,278.13 × 8,981.58
  4. Step 4: Simplify right side
    19,521.68x = 262,963,931.73
  5. Step 5: Solve for x
    x = 262,963,931.73/19,521.68
  6. Step 6: Final answer
    x = 13,470.36

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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.