Home / 38,478.14-57,718.86-15,109.64

Finding the Fourth Proportional to 38,478.14, 57,718.86 and 15,109.64

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Solution

The fourth proportional to 38,478.14, 57,718.86 and 15,109.64 is: 22,665.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.14 : 57,718.86 = 15,109.64 : x
  2. Step 2: Convert to fraction form
    38,478.14/57,718.86 = 15,109.64/x
  3. Step 3: Cross multiply
    38,478.14x = 57,718.86 × 15,109.64
  4. Step 4: Simplify right side
    38,478.14x = 872,111,195.81
  5. Step 5: Solve for x
    x = 872,111,195.81/38,478.14
  6. Step 6: Final answer
    x = 22,665.11

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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.