Home / 27,140.04-40,712.76-8,419.32

Finding the Fourth Proportional to 27,140.04, 40,712.76 and 8,419.32

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Solution

The fourth proportional to 27,140.04, 40,712.76 and 8,419.32 is: 12,629.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,140.04 : 40,712.76 = 8,419.32 : x
  2. Step 2: Convert to fraction form
    27,140.04/40,712.76 = 8,419.32/x
  3. Step 3: Cross multiply
    27,140.04x = 40,712.76 × 8,419.32
  4. Step 4: Simplify right side
    27,140.04x = 342,773,754.52
  5. Step 5: Solve for x
    x = 342,773,754.52/27,140.04
  6. Step 6: Final answer
    x = 12,629.82

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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.