Home / 26,960.40-40,429.80-9,421.20

Finding the Fourth Proportional to 26,960.40, 40,429.80 and 9,421.20

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Solution

The fourth proportional to 26,960.40, 40,429.80 and 9,421.20 is: 14,128.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,960.40 : 40,429.80 = 9,421.20 : x
  2. Step 2: Convert to fraction form
    26,960.40/40,429.80 = 9,421.20/x
  3. Step 3: Cross multiply
    26,960.40x = 40,429.80 × 9,421.20
  4. Step 4: Simplify right side
    26,960.40x = 380,897,231.76
  5. Step 5: Solve for x
    x = 380,897,231.76/26,960.40
  6. Step 6: Final answer
    x = 14,128.03

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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.