Home / 21,242.04-31,867.08-10,149.60

Finding the Fourth Proportional to 21,242.04, 31,867.08 and 10,149.60

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Solution

The fourth proportional to 21,242.04, 31,867.08 and 10,149.60 is: 15,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.04 : 31,867.08 = 10,149.60 : x
  2. Step 2: Convert to fraction form
    21,242.04/31,867.08 = 10,149.60/x
  3. Step 3: Cross multiply
    21,242.04x = 31,867.08 × 10,149.60
  4. Step 4: Simplify right side
    21,242.04x = 323,438,115.17
  5. Step 5: Solve for x
    x = 323,438,115.17/21,242.04
  6. Step 6: Final answer
    x = 15,226.32

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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.