Home / 15,538.16-23,211.20-13,975.68

Finding the Fourth Proportional to 15,538.16, 23,211.20 and 13,975.68

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Solution

The fourth proportional to 15,538.16, 23,211.20 and 13,975.68 is: 20,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.16 : 23,211.20 = 13,975.68 : x
  2. Step 2: Convert to fraction form
    15,538.16/23,211.20 = 13,975.68/x
  3. Step 3: Cross multiply
    15,538.16x = 23,211.20 × 13,975.68
  4. Step 4: Simplify right side
    15,538.16x = 324,392,303.62
  5. Step 5: Solve for x
    x = 324,392,303.62/15,538.16
  6. Step 6: Final answer
    x = 20,877.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.