Home / 28,997.87-40,017.05-16,422.62

Finding the Fourth Proportional to 28,997.87, 40,017.05 and 16,422.62

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Solution

The fourth proportional to 28,997.87, 40,017.05 and 16,422.62 is: 22,663.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.87 : 40,017.05 = 16,422.62 : x
  2. Step 2: Convert to fraction form
    28,997.87/40,017.05 = 16,422.62/x
  3. Step 3: Cross multiply
    28,997.87x = 40,017.05 × 16,422.62
  4. Step 4: Simplify right side
    28,997.87x = 657,184,585.06
  5. Step 5: Solve for x
    x = 657,184,585.06/28,997.87
  6. Step 6: Final answer
    x = 22,663.21

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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.