Home / 38,818.19-58,239.58-13,857.68

Finding the Fourth Proportional to 38,818.19, 58,239.58 and 13,857.68

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Solution

The fourth proportional to 38,818.19, 58,239.58 and 13,857.68 is: 20,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,818.19 : 58,239.58 = 13,857.68 : x
  2. Step 2: Convert to fraction form
    38,818.19/58,239.58 = 13,857.68/x
  3. Step 3: Cross multiply
    38,818.19x = 58,239.58 × 13,857.68
  4. Step 4: Simplify right side
    38,818.19x = 807,065,599.91
  5. Step 5: Solve for x
    x = 807,065,599.91/38,818.19
  6. Step 6: Final answer
    x = 20,790.91

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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.