Home / 40,774.86-61,140.15-12,682.71

Finding the Fourth Proportional to 40,774.86, 61,140.15 and 12,682.71

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Solution

The fourth proportional to 40,774.86, 61,140.15 and 12,682.71 is: 19,017.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,774.86 : 61,140.15 = 12,682.71 : x
  2. Step 2: Convert to fraction form
    40,774.86/61,140.15 = 12,682.71/x
  3. Step 3: Cross multiply
    40,774.86x = 61,140.15 × 12,682.71
  4. Step 4: Simplify right side
    40,774.86x = 775,422,791.81
  5. Step 5: Solve for x
    x = 775,422,791.81/40,774.86
  6. Step 6: Final answer
    x = 19,017.18

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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.