Home / 21,822.39-32,688.18-21,069.59

Finding the Fourth Proportional to 21,822.39, 32,688.18 and 21,069.59

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Solution

The fourth proportional to 21,822.39, 32,688.18 and 21,069.59 is: 31,560.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,822.39 : 32,688.18 = 21,069.59 : x
  2. Step 2: Convert to fraction form
    21,822.39/32,688.18 = 21,069.59/x
  3. Step 3: Cross multiply
    21,822.39x = 32,688.18 × 21,069.59
  4. Step 4: Simplify right side
    21,822.39x = 688,726,281.66
  5. Step 5: Solve for x
    x = 688,726,281.66/21,822.39
  6. Step 6: Final answer
    x = 31,560.53

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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.