Home / 28,566.16-39,421.08-15,991.12

Finding the Fourth Proportional to 28,566.16, 39,421.08 and 15,991.12

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Solution

The fourth proportional to 28,566.16, 39,421.08 and 15,991.12 is: 22,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,566.16 : 39,421.08 = 15,991.12 : x
  2. Step 2: Convert to fraction form
    28,566.16/39,421.08 = 15,991.12/x
  3. Step 3: Cross multiply
    28,566.16x = 39,421.08 × 15,991.12
  4. Step 4: Simplify right side
    28,566.16x = 630,387,220.81
  5. Step 5: Solve for x
    x = 630,387,220.81/28,566.16
  6. Step 6: Final answer
    x = 22,067.62

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Similar ratio
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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.