Home / 21,688.28-32,543.34-8,550.08

Finding the Fourth Proportional to 21,688.28, 32,543.34 and 8,550.08

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Solution

The fourth proportional to 21,688.28, 32,543.34 and 8,550.08 is: 12,829.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.28 : 32,543.34 = 8,550.08 : x
  2. Step 2: Convert to fraction form
    21,688.28/32,543.34 = 8,550.08/x
  3. Step 3: Cross multiply
    21,688.28x = 32,543.34 × 8,550.08
  4. Step 4: Simplify right side
    21,688.28x = 278,248,160.47
  5. Step 5: Solve for x
    x = 278,248,160.47/21,688.28
  6. Step 6: Final answer
    x = 12,829.42

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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.