Home / 21,823.39-32,689.68-21,070.59

Finding the Fourth Proportional to 21,823.39, 32,689.68 and 21,070.59

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Solution

The fourth proportional to 21,823.39, 32,689.68 and 21,070.59 is: 31,562.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,823.39 : 32,689.68 = 21,070.59 : x
  2. Step 2: Convert to fraction form
    21,823.39/32,689.68 = 21,070.59/x
  3. Step 3: Cross multiply
    21,823.39x = 32,689.68 × 21,070.59
  4. Step 4: Simplify right side
    21,823.39x = 688,790,575.71
  5. Step 5: Solve for x
    x = 688,790,575.71/21,823.39
  6. Step 6: Final answer
    x = 31,562.03

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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.