Home / 28,008.24-42,018.84-16,331.28

Finding the Fourth Proportional to 28,008.24, 42,018.84 and 16,331.28

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Solution

The fourth proportional to 28,008.24, 42,018.84 and 16,331.28 is: 24,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.24 : 42,018.84 = 16,331.28 : x
  2. Step 2: Convert to fraction form
    28,008.24/42,018.84 = 16,331.28/x
  3. Step 3: Cross multiply
    28,008.24x = 42,018.84 × 16,331.28
  4. Step 4: Simplify right side
    28,008.24x = 686,221,441.32
  5. Step 5: Solve for x
    x = 686,221,441.32/28,008.24
  6. Step 6: Final answer
    x = 24,500.70

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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.