Home / 21,370.68-32,062.50-10,989.72

Finding the Fourth Proportional to 21,370.68, 32,062.50 and 10,989.72

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Solution

The fourth proportional to 21,370.68, 32,062.50 and 10,989.72 is: 16,487.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370.68 : 32,062.50 = 10,989.72 : x
  2. Step 2: Convert to fraction form
    21,370.68/32,062.50 = 10,989.72/x
  3. Step 3: Cross multiply
    21,370.68x = 32,062.50 × 10,989.72
  4. Step 4: Simplify right side
    21,370.68x = 352,357,897.50
  5. Step 5: Solve for x
    x = 352,357,897.50/21,370.68
  6. Step 6: Final answer
    x = 16,487.91

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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.