Home / 15,879.40-23,819.10-5,492.20

Finding the Fourth Proportional to 15,879.40, 23,819.10 and 5,492.20

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Solution

The fourth proportional to 15,879.40, 23,819.10 and 5,492.20 is: 8,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.40 : 23,819.10 = 5,492.20 : x
  2. Step 2: Convert to fraction form
    15,879.40/23,819.10 = 5,492.20/x
  3. Step 3: Cross multiply
    15,879.40x = 23,819.10 × 5,492.20
  4. Step 4: Simplify right side
    15,879.40x = 130,819,261.02
  5. Step 5: Solve for x
    x = 130,819,261.02/15,879.40
  6. Step 6: Final answer
    x = 8,238.30

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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.