Home / 30,479.28-42,044.48-17,731.04

Finding the Fourth Proportional to 30,479.28, 42,044.48 and 17,731.04

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Solution

The fourth proportional to 30,479.28, 42,044.48 and 17,731.04 is: 24,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,479.28 : 42,044.48 = 17,731.04 : x
  2. Step 2: Convert to fraction form
    30,479.28/42,044.48 = 17,731.04/x
  3. Step 3: Cross multiply
    30,479.28x = 42,044.48 × 17,731.04
  4. Step 4: Simplify right side
    30,479.28x = 745,492,356.66
  5. Step 5: Solve for x
    x = 745,492,356.66/30,479.28
  6. Step 6: Final answer
    x = 24,458.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.