Home / 40,278.10-60,434.16-20,277.16

Finding the Fourth Proportional to 40,278.10, 60,434.16 and 20,277.16

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Solution

The fourth proportional to 40,278.10, 60,434.16 and 20,277.16 is: 30,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.10 : 60,434.16 = 20,277.16 : x
  2. Step 2: Convert to fraction form
    40,278.10/60,434.16 = 20,277.16/x
  3. Step 3: Cross multiply
    40,278.10x = 60,434.16 × 20,277.16
  4. Step 4: Simplify right side
    40,278.10x = 1,225,433,131.79
  5. Step 5: Solve for x
    x = 1,225,433,131.79/40,278.10
  6. Step 6: Final answer
    x = 30,424.30

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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.