Home / 27,128.71-40,693.47-8,408.53

Finding the Fourth Proportional to 27,128.71, 40,693.47 and 8,408.53

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Solution

The fourth proportional to 27,128.71, 40,693.47 and 8,408.53 is: 12,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.71 : 40,693.47 = 8,408.53 : x
  2. Step 2: Convert to fraction form
    27,128.71/40,693.47 = 8,408.53/x
  3. Step 3: Cross multiply
    27,128.71x = 40,693.47 × 8,408.53
  4. Step 4: Simplify right side
    27,128.71x = 342,172,263.30
  5. Step 5: Solve for x
    x = 342,172,263.30/27,128.71
  6. Step 6: Final answer
    x = 12,612.92

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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.