Home / 20,373.80-30,575.15-9,281.93

Finding the Fourth Proportional to 20,373.80, 30,575.15 and 9,281.93

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Solution

The fourth proportional to 20,373.80, 30,575.15 and 9,281.93 is: 13,929.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373.80 : 30,575.15 = 9,281.93 : x
  2. Step 2: Convert to fraction form
    20,373.80/30,575.15 = 9,281.93/x
  3. Step 3: Cross multiply
    20,373.80x = 30,575.15 × 9,281.93
  4. Step 4: Simplify right side
    20,373.80x = 283,796,317.41
  5. Step 5: Solve for x
    x = 283,796,317.41/20,373.80
  6. Step 6: Final answer
    x = 13,929.47

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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.