Home / 21,066.62-31,599.90-8,583.93

Finding the Fourth Proportional to 21,066.62, 31,599.90 and 8,583.93

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Solution

The fourth proportional to 21,066.62, 31,599.90 and 8,583.93 is: 12,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,066.62 : 31,599.90 = 8,583.93 : x
  2. Step 2: Convert to fraction form
    21,066.62/31,599.90 = 8,583.93/x
  3. Step 3: Cross multiply
    21,066.62x = 31,599.90 × 8,583.93
  4. Step 4: Simplify right side
    21,066.62x = 271,251,329.61
  5. Step 5: Solve for x
    x = 271,251,329.61/21,066.62
  6. Step 6: Final answer
    x = 12,875.89

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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.