Home / 27,926.78-38,538.86-15,990.08

Finding the Fourth Proportional to 27,926.78, 38,538.86 and 15,990.08

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Solution

The fourth proportional to 27,926.78, 38,538.86 and 15,990.08 is: 22,066.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,926.78 : 38,538.86 = 15,990.08 : x
  2. Step 2: Convert to fraction form
    27,926.78/38,538.86 = 15,990.08/x
  3. Step 3: Cross multiply
    27,926.78x = 38,538.86 × 15,990.08
  4. Step 4: Simplify right side
    27,926.78x = 616,239,181.86
  5. Step 5: Solve for x
    x = 616,239,181.86/27,926.78
  6. Step 6: Final answer
    x = 22,066.25

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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.