Home / 56,278.55-84,422.30-18,838.82

Finding the Fourth Proportional to 56,278.55, 84,422.30 and 18,838.82

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Solution

The fourth proportional to 56,278.55, 84,422.30 and 18,838.82 is: 28,259.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,278.55 : 84,422.30 = 18,838.82 : x
  2. Step 2: Convert to fraction form
    56,278.55/84,422.30 = 18,838.82/x
  3. Step 3: Cross multiply
    56,278.55x = 84,422.30 × 18,838.82
  4. Step 4: Simplify right side
    56,278.55x = 1,590,416,513.69
  5. Step 5: Solve for x
    x = 1,590,416,513.69/56,278.55
  6. Step 6: Final answer
    x = 28,259.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.