Home / 40,387.31-60,583.95-12,309.77

Finding the Fourth Proportional to 40,387.31, 60,583.95 and 12,309.77

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Solution

The fourth proportional to 40,387.31, 60,583.95 and 12,309.77 is: 18,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,387.31 : 60,583.95 = 12,309.77 : x
  2. Step 2: Convert to fraction form
    40,387.31/60,583.95 = 12,309.77/x
  3. Step 3: Cross multiply
    40,387.31x = 60,583.95 × 12,309.77
  4. Step 4: Simplify right side
    40,387.31x = 745,774,641.65
  5. Step 5: Solve for x
    x = 745,774,641.65/40,387.31
  6. Step 6: Final answer
    x = 18,465.57

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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.