Home / 38,898.72-58,348.13-10,818.78

Finding the Fourth Proportional to 38,898.72, 58,348.13 and 10,818.78

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Solution

The fourth proportional to 38,898.72, 58,348.13 and 10,818.78 is: 16,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,898.72 : 58,348.13 = 10,818.78 : x
  2. Step 2: Convert to fraction form
    38,898.72/58,348.13 = 10,818.78/x
  3. Step 3: Cross multiply
    38,898.72x = 58,348.13 × 10,818.78
  4. Step 4: Simplify right side
    38,898.72x = 631,255,581.88
  5. Step 5: Solve for x
    x = 631,255,581.88/38,898.72
  6. Step 6: Final answer
    x = 16,228.18

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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.