Home / 21,246.20-31,869.29-10,119.16

Finding the Fourth Proportional to 21,246.20, 31,869.29 and 10,119.16

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Solution

The fourth proportional to 21,246.20, 31,869.29 and 10,119.16 is: 15,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.20 : 31,869.29 = 10,119.16 : x
  2. Step 2: Convert to fraction form
    21,246.20/31,869.29 = 10,119.16/x
  3. Step 3: Cross multiply
    21,246.20x = 31,869.29 × 10,119.16
  4. Step 4: Simplify right side
    21,246.20x = 322,490,444.60
  5. Step 5: Solve for x
    x = 322,490,444.60/21,246.20
  6. Step 6: Final answer
    x = 15,178.74

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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.