Home / 28,997.71-40,019.65-16,253.06

Finding the Fourth Proportional to 28,997.71, 40,019.65 and 16,253.06

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Solution

The fourth proportional to 28,997.71, 40,019.65 and 16,253.06 is: 22,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.71 : 40,019.65 = 16,253.06 : x
  2. Step 2: Convert to fraction form
    28,997.71/40,019.65 = 16,253.06/x
  3. Step 3: Cross multiply
    28,997.71x = 40,019.65 × 16,253.06
  4. Step 4: Simplify right side
    28,997.71x = 650,441,531.90
  5. Step 5: Solve for x
    x = 650,441,531.90/28,997.71
  6. Step 6: Final answer
    x = 22,430.79

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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.