Home / 41,212.08-61,818.12-20,430.72

Finding the Fourth Proportional to 41,212.08, 61,818.12 and 20,430.72

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Solution

The fourth proportional to 41,212.08, 61,818.12 and 20,430.72 is: 30,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,212.08 : 61,818.12 = 20,430.72 : x
  2. Step 2: Convert to fraction form
    41,212.08/61,818.12 = 20,430.72/x
  3. Step 3: Cross multiply
    41,212.08x = 61,818.12 × 20,430.72
  4. Step 4: Simplify right side
    41,212.08x = 1,262,988,700.65
  5. Step 5: Solve for x
    x = 1,262,988,700.65/41,212.08
  6. Step 6: Final answer
    x = 30,646.08

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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.