Home / 40,138.48-55,403.52-23,154.16

Finding the Fourth Proportional to 40,138.48, 55,403.52 and 23,154.16

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Solution

The fourth proportional to 40,138.48, 55,403.52 and 23,154.16 is: 31,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,138.48 : 55,403.52 = 23,154.16 : x
  2. Step 2: Convert to fraction form
    40,138.48/55,403.52 = 23,154.16/x
  3. Step 3: Cross multiply
    40,138.48x = 55,403.52 × 23,154.16
  4. Step 4: Simplify right side
    40,138.48x = 1,282,821,966.64
  5. Step 5: Solve for x
    x = 1,282,821,966.64/40,138.48
  6. Step 6: Final answer
    x = 31,959.90

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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.