Home / 40,000.42-60,038.30-20,293.12

Finding the Fourth Proportional to 40,000.42, 60,038.30 and 20,293.12

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Solution

The fourth proportional to 40,000.42, 60,038.30 and 20,293.12 is: 30,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,000.42 : 60,038.30 = 20,293.12 : x
  2. Step 2: Convert to fraction form
    40,000.42/60,038.30 = 20,293.12/x
  3. Step 3: Cross multiply
    40,000.42x = 60,038.30 × 20,293.12
  4. Step 4: Simplify right side
    40,000.42x = 1,218,364,325.03
  5. Step 5: Solve for x
    x = 1,218,364,325.03/40,000.42
  6. Step 6: Final answer
    x = 30,458.79

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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.