Home / 26,779.32-40,174.86-10,139.50

Finding the Fourth Proportional to 26,779.32, 40,174.86 and 10,139.50

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Solution

The fourth proportional to 26,779.32, 40,174.86 and 10,139.50 is: 15,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,779.32 : 40,174.86 = 10,139.50 : x
  2. Step 2: Convert to fraction form
    26,779.32/40,174.86 = 10,139.50/x
  3. Step 3: Cross multiply
    26,779.32x = 40,174.86 × 10,139.50
  4. Step 4: Simplify right side
    26,779.32x = 407,352,992.97
  5. Step 5: Solve for x
    x = 407,352,992.97/26,779.32
  6. Step 6: Final answer
    x = 15,211.48

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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.