Home / 28,519.65-42,787.67-14,479.11

Finding the Fourth Proportional to 28,519.65, 42,787.67 and 14,479.11

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Solution

The fourth proportional to 28,519.65, 42,787.67 and 14,479.11 is: 21,722.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.65 : 42,787.67 = 14,479.11 : x
  2. Step 2: Convert to fraction form
    28,519.65/42,787.67 = 14,479.11/x
  3. Step 3: Cross multiply
    28,519.65x = 42,787.67 × 14,479.11
  4. Step 4: Simplify right side
    28,519.65x = 619,527,308.18
  5. Step 5: Solve for x
    x = 619,527,308.18/28,519.65
  6. Step 6: Final answer
    x = 21,722.82

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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.