Home / 47,787-65,947.75-26,278.39

Finding the Fourth Proportional to 47,787, 65,947.75 and 26,278.39

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Solution

The fourth proportional to 47,787, 65,947.75 and 26,278.39 is: 36,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,787 : 65,947.75 = 26,278.39 : x
  2. Step 2: Convert to fraction form
    47,787/65,947.75 = 26,278.39/x
  3. Step 3: Cross multiply
    47,787x = 65,947.75 × 26,278.39
  4. Step 4: Simplify right side
    47,787x = 1,733,000,364.38
  5. Step 5: Solve for x
    x = 1,733,000,364.38/47,787
  6. Step 6: Final answer
    x = 36,265.10

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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.