Home / 40,898.72-61,348.85-12,818.15

Finding the Fourth Proportional to 40,898.72, 61,348.85 and 12,818.15

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Solution

The fourth proportional to 40,898.72, 61,348.85 and 12,818.15 is: 19,227.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,898.72 : 61,348.85 = 12,818.15 : x
  2. Step 2: Convert to fraction form
    40,898.72/61,348.85 = 12,818.15/x
  3. Step 3: Cross multiply
    40,898.72x = 61,348.85 × 12,818.15
  4. Step 4: Simplify right side
    40,898.72x = 786,378,823.44
  5. Step 5: Solve for x
    x = 786,378,823.44/40,898.72
  6. Step 6: Final answer
    x = 19,227.47

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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.