Home / 30,278.64-41,778.24-17,700.96

Finding the Fourth Proportional to 30,278.64, 41,778.24 and 17,700.96

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Solution

The fourth proportional to 30,278.64, 41,778.24 and 17,700.96 is: 24,423.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.64 : 41,778.24 = 17,700.96 : x
  2. Step 2: Convert to fraction form
    30,278.64/41,778.24 = 17,700.96/x
  3. Step 3: Cross multiply
    30,278.64x = 41,778.24 × 17,700.96
  4. Step 4: Simplify right side
    30,278.64x = 739,514,955.11
  5. Step 5: Solve for x
    x = 739,514,955.11/30,278.64
  6. Step 6: Final answer
    x = 24,423.65

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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.