Home / 28,218.77-42,281.68-21,963.04

Finding the Fourth Proportional to 28,218.77, 42,281.68 and 21,963.04

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Solution

The fourth proportional to 28,218.77, 42,281.68 and 21,963.04 is: 32,908.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218.77 : 42,281.68 = 21,963.04 : x
  2. Step 2: Convert to fraction form
    28,218.77/42,281.68 = 21,963.04/x
  3. Step 3: Cross multiply
    28,218.77x = 42,281.68 × 21,963.04
  4. Step 4: Simplify right side
    28,218.77x = 928,634,229.11
  5. Step 5: Solve for x
    x = 928,634,229.11/28,218.77
  6. Step 6: Final answer
    x = 32,908.39

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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.