Home / 21,790.48-32,689.56-10,116.88

Finding the Fourth Proportional to 21,790.48, 32,689.56 and 10,116.88

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Solution

The fourth proportional to 21,790.48, 32,689.56 and 10,116.88 is: 15,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,790.48 : 32,689.56 = 10,116.88 : x
  2. Step 2: Convert to fraction form
    21,790.48/32,689.56 = 10,116.88/x
  3. Step 3: Cross multiply
    21,790.48x = 32,689.56 × 10,116.88
  4. Step 4: Simplify right side
    21,790.48x = 330,716,355.77
  5. Step 5: Solve for x
    x = 330,716,355.77/21,790.48
  6. Step 6: Final answer
    x = 15,177.10

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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.