Home / 28,887.76-39,864.65-16,141.20

Finding the Fourth Proportional to 28,887.76, 39,864.65 and 16,141.20

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Solution

The fourth proportional to 28,887.76, 39,864.65 and 16,141.20 is: 22,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.76 : 39,864.65 = 16,141.20 : x
  2. Step 2: Convert to fraction form
    28,887.76/39,864.65 = 16,141.20/x
  3. Step 3: Cross multiply
    28,887.76x = 39,864.65 × 16,141.20
  4. Step 4: Simplify right side
    28,887.76x = 643,463,288.58
  5. Step 5: Solve for x
    x = 643,463,288.58/28,887.76
  6. Step 6: Final answer
    x = 22,274.60

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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.