Home / 28,827.04-39,781.24-15,579.04

Finding the Fourth Proportional to 28,827.04, 39,781.24 and 15,579.04

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Solution

The fourth proportional to 28,827.04, 39,781.24 and 15,579.04 is: 21,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.04 : 39,781.24 = 15,579.04 : x
  2. Step 2: Convert to fraction form
    28,827.04/39,781.24 = 15,579.04/x
  3. Step 3: Cross multiply
    28,827.04x = 39,781.24 × 15,579.04
  4. Step 4: Simplify right side
    28,827.04x = 619,753,529.21
  5. Step 5: Solve for x
    x = 619,753,529.21/28,827.04
  6. Step 6: Final answer
    x = 21,499.03

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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.