Home / 38,641.08-57,970.62-12,343.80

Finding the Fourth Proportional to 38,641.08, 57,970.62 and 12,343.80

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Solution

The fourth proportional to 38,641.08, 57,970.62 and 12,343.80 is: 18,518.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.08 : 57,970.62 = 12,343.80 : x
  2. Step 2: Convert to fraction form
    38,641.08/57,970.62 = 12,343.80/x
  3. Step 3: Cross multiply
    38,641.08x = 57,970.62 × 12,343.80
  4. Step 4: Simplify right side
    38,641.08x = 715,577,739.16
  5. Step 5: Solve for x
    x = 715,577,739.16/38,641.08
  6. Step 6: Final answer
    x = 18,518.58

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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.