Home / 21,095.04-31,651.30-9,242.70

Finding the Fourth Proportional to 21,095.04, 31,651.30 and 9,242.70

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Solution

The fourth proportional to 21,095.04, 31,651.30 and 9,242.70 is: 13,867.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.04 : 31,651.30 = 9,242.70 : x
  2. Step 2: Convert to fraction form
    21,095.04/31,651.30 = 9,242.70/x
  3. Step 3: Cross multiply
    21,095.04x = 31,651.30 × 9,242.70
  4. Step 4: Simplify right side
    21,095.04x = 292,543,470.51
  5. Step 5: Solve for x
    x = 292,543,470.51/21,095.04
  6. Step 6: Final answer
    x = 13,867.88

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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.