Home / 26,648.64-36,776.28-15,321.78

Finding the Fourth Proportional to 26,648.64, 36,776.28 and 15,321.78

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Solution

The fourth proportional to 26,648.64, 36,776.28 and 15,321.78 is: 21,144.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,648.64 : 36,776.28 = 15,321.78 : x
  2. Step 2: Convert to fraction form
    26,648.64/36,776.28 = 15,321.78/x
  3. Step 3: Cross multiply
    26,648.64x = 36,776.28 × 15,321.78
  4. Step 4: Simplify right side
    26,648.64x = 563,478,071.38
  5. Step 5: Solve for x
    x = 563,478,071.38/26,648.64
  6. Step 6: Final answer
    x = 21,144.72

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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.