Home / 15,458.60-23,187.90-13,231.40

Finding the Fourth Proportional to 15,458.60, 23,187.90 and 13,231.40

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Solution

The fourth proportional to 15,458.60, 23,187.90 and 13,231.40 is: 19,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.60 : 23,187.90 = 13,231.40 : x
  2. Step 2: Convert to fraction form
    15,458.60/23,187.90 = 13,231.40/x
  3. Step 3: Cross multiply
    15,458.60x = 23,187.90 × 13,231.40
  4. Step 4: Simplify right side
    15,458.60x = 306,808,380.06
  5. Step 5: Solve for x
    x = 306,808,380.06/15,458.60
  6. Step 6: Final answer
    x = 19,847.10

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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.