Home / 26,647.92-36,779.40-15,325.20

Finding the Fourth Proportional to 26,647.92, 36,779.40 and 15,325.20

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Solution

The fourth proportional to 26,647.92, 36,779.40 and 15,325.20 is: 21,151.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,647.92 : 36,779.40 = 15,325.20 : x
  2. Step 2: Convert to fraction form
    26,647.92/36,779.40 = 15,325.20/x
  3. Step 3: Cross multiply
    26,647.92x = 36,779.40 × 15,325.20
  4. Step 4: Simplify right side
    26,647.92x = 563,651,660.88
  5. Step 5: Solve for x
    x = 563,651,660.88/26,647.92
  6. Step 6: Final answer
    x = 21,151.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.