Home / 38,310.34-57,449.88-13,345.06

Finding the Fourth Proportional to 38,310.34, 57,449.88 and 13,345.06

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Solution

The fourth proportional to 38,310.34, 57,449.88 and 13,345.06 is: 20,012.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,310.34 : 57,449.88 = 13,345.06 : x
  2. Step 2: Convert to fraction form
    38,310.34/57,449.88 = 13,345.06/x
  3. Step 3: Cross multiply
    38,310.34x = 57,449.88 × 13,345.06
  4. Step 4: Simplify right side
    38,310.34x = 766,672,095.59
  5. Step 5: Solve for x
    x = 766,672,095.59/38,310.34
  6. Step 6: Final answer
    x = 20,012.15

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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.