Home / 38,436.04-57,668.96-13,478.86

Finding the Fourth Proportional to 38,436.04, 57,668.96 and 13,478.86

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Solution

The fourth proportional to 38,436.04, 57,668.96 and 13,478.86 is: 20,223.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,436.04 : 57,668.96 = 13,478.86 : x
  2. Step 2: Convert to fraction form
    38,436.04/57,668.96 = 13,478.86/x
  3. Step 3: Cross multiply
    38,436.04x = 57,668.96 × 13,478.86
  4. Step 4: Simplify right side
    38,436.04x = 777,311,838.19
  5. Step 5: Solve for x
    x = 777,311,838.19/38,436.04
  6. Step 6: Final answer
    x = 20,223.52

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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.