Home / 28,614.89-42,932.50-12,818.68

Finding the Fourth Proportional to 28,614.89, 42,932.50 and 12,818.68

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Solution

The fourth proportional to 28,614.89, 42,932.50 and 12,818.68 is: 19,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.89 : 42,932.50 = 12,818.68 : x
  2. Step 2: Convert to fraction form
    28,614.89/42,932.50 = 12,818.68/x
  3. Step 3: Cross multiply
    28,614.89x = 42,932.50 × 12,818.68
  4. Step 4: Simplify right side
    28,614.89x = 550,337,839.72
  5. Step 5: Solve for x
    x = 550,337,839.72/28,614.89
  6. Step 6: Final answer
    x = 19,232.57

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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.