Home / 28,983.28-39,996.28-16,407.76

Finding the Fourth Proportional to 28,983.28, 39,996.28 and 16,407.76

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Solution

The fourth proportional to 28,983.28, 39,996.28 and 16,407.76 is: 22,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.28 : 39,996.28 = 16,407.76 : x
  2. Step 2: Convert to fraction form
    28,983.28/39,996.28 = 16,407.76/x
  3. Step 3: Cross multiply
    28,983.28x = 39,996.28 × 16,407.76
  4. Step 4: Simplify right side
    28,983.28x = 656,249,363.13
  5. Step 5: Solve for x
    x = 656,249,363.13/28,983.28
  6. Step 6: Final answer
    x = 22,642.34

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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.