Home / 21,045.65-31,612.20-16,693.52

Finding the Fourth Proportional to 21,045.65, 31,612.20 and 16,693.52

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Solution

The fourth proportional to 21,045.65, 31,612.20 and 16,693.52 is: 25,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.65 : 31,612.20 = 16,693.52 : x
  2. Step 2: Convert to fraction form
    21,045.65/31,612.20 = 16,693.52/x
  3. Step 3: Cross multiply
    21,045.65x = 31,612.20 × 16,693.52
  4. Step 4: Simplify right side
    21,045.65x = 527,718,734.88
  5. Step 5: Solve for x
    x = 527,718,734.88/21,045.65
  6. Step 6: Final answer
    x = 25,074.96

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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.