Home / 40,881.03-61,330.40-12,415.65

Finding the Fourth Proportional to 40,881.03, 61,330.40 and 12,415.65

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Solution

The fourth proportional to 40,881.03, 61,330.40 and 12,415.65 is: 18,626.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,881.03 : 61,330.40 = 12,415.65 : x
  2. Step 2: Convert to fraction form
    40,881.03/61,330.40 = 12,415.65/x
  3. Step 3: Cross multiply
    40,881.03x = 61,330.40 × 12,415.65
  4. Step 4: Simplify right side
    40,881.03x = 761,456,718.68
  5. Step 5: Solve for x
    x = 761,456,718.68/40,881.03
  6. Step 6: Final answer
    x = 18,626.16

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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.