Home / 19,320.47-28,961.10-10,983.26

Finding the Fourth Proportional to 19,320.47, 28,961.10 and 10,983.26

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Solution

The fourth proportional to 19,320.47, 28,961.10 and 10,983.26 is: 16,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.47 : 28,961.10 = 10,983.26 : x
  2. Step 2: Convert to fraction form
    19,320.47/28,961.10 = 10,983.26/x
  3. Step 3: Cross multiply
    19,320.47x = 28,961.10 × 10,983.26
  4. Step 4: Simplify right side
    19,320.47x = 318,087,213.80
  5. Step 5: Solve for x
    x = 318,087,213.80/19,320.47
  6. Step 6: Final answer
    x = 16,463.74

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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.