Home / 40,867.65-61,303.17-12,788.25

Finding the Fourth Proportional to 40,867.65, 61,303.17 and 12,788.25

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Solution

The fourth proportional to 40,867.65, 61,303.17 and 12,788.25 is: 19,182.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,867.65 : 61,303.17 = 12,788.25 : x
  2. Step 2: Convert to fraction form
    40,867.65/61,303.17 = 12,788.25/x
  3. Step 3: Cross multiply
    40,867.65x = 61,303.17 × 12,788.25
  4. Step 4: Simplify right side
    40,867.65x = 783,960,081.82
  5. Step 5: Solve for x
    x = 783,960,081.82/40,867.65
  6. Step 6: Final answer
    x = 19,182.90

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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.