Home / 28,487.28-39,309.80-16,550.45

Finding the Fourth Proportional to 28,487.28, 39,309.80 and 16,550.45

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Solution

The fourth proportional to 28,487.28, 39,309.80 and 16,550.45 is: 22,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.28 : 39,309.80 = 16,550.45 : x
  2. Step 2: Convert to fraction form
    28,487.28/39,309.80 = 16,550.45/x
  3. Step 3: Cross multiply
    28,487.28x = 39,309.80 × 16,550.45
  4. Step 4: Simplify right side
    28,487.28x = 650,594,600.11
  5. Step 5: Solve for x
    x = 650,594,600.11/28,487.28
  6. Step 6: Final answer
    x = 22,838.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.