Home / 30,146.23-45,230.19-10,426.78

Finding the Fourth Proportional to 30,146.23, 45,230.19 and 10,426.78

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Solution

The fourth proportional to 30,146.23, 45,230.19 and 10,426.78 is: 15,643.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,146.23 : 45,230.19 = 10,426.78 : x
  2. Step 2: Convert to fraction form
    30,146.23/45,230.19 = 10,426.78/x
  3. Step 3: Cross multiply
    30,146.23x = 45,230.19 × 10,426.78
  4. Step 4: Simplify right side
    30,146.23x = 471,605,240.49
  5. Step 5: Solve for x
    x = 471,605,240.49/30,146.23
  6. Step 6: Final answer
    x = 15,643.92

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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.