Home / 28,178.38-38,877.36-16,240.10

Finding the Fourth Proportional to 28,178.38, 38,877.36 and 16,240.10

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Solution

The fourth proportional to 28,178.38, 38,877.36 and 16,240.10 is: 22,406.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,178.38 : 38,877.36 = 16,240.10 : x
  2. Step 2: Convert to fraction form
    28,178.38/38,877.36 = 16,240.10/x
  3. Step 3: Cross multiply
    28,178.38x = 38,877.36 × 16,240.10
  4. Step 4: Simplify right side
    28,178.38x = 631,372,214.14
  5. Step 5: Solve for x
    x = 631,372,214.14/28,178.38
  6. Step 6: Final answer
    x = 22,406.26

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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.