Home / 15,521.15-23,162.46-13,860.32

Finding the Fourth Proportional to 15,521.15, 23,162.46 and 13,860.32

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Solution

The fourth proportional to 15,521.15, 23,162.46 and 13,860.32 is: 20,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.15 : 23,162.46 = 13,860.32 : x
  2. Step 2: Convert to fraction form
    15,521.15/23,162.46 = 13,860.32/x
  3. Step 3: Cross multiply
    15,521.15x = 23,162.46 × 13,860.32
  4. Step 4: Simplify right side
    15,521.15x = 321,038,939.80
  5. Step 5: Solve for x
    x = 321,038,939.80/15,521.15
  6. Step 6: Final answer
    x = 20,683.96

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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.