Home / 40,135.14-55,385.64-23,139.18

Finding the Fourth Proportional to 40,135.14, 55,385.64 and 23,139.18

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Solution

The fourth proportional to 40,135.14, 55,385.64 and 23,139.18 is: 31,931.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,135.14 : 55,385.64 = 23,139.18 : x
  2. Step 2: Convert to fraction form
    40,135.14/55,385.64 = 23,139.18/x
  3. Step 3: Cross multiply
    40,135.14x = 55,385.64 × 23,139.18
  4. Step 4: Simplify right side
    40,135.14x = 1,281,578,293.38
  5. Step 5: Solve for x
    x = 1,281,578,293.38/40,135.14
  6. Step 6: Final answer
    x = 31,931.58

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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.