Home / 26,710.24-40,071.08-7,991.72

Finding the Fourth Proportional to 26,710.24, 40,071.08 and 7,991.72

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Solution

The fourth proportional to 26,710.24, 40,071.08 and 7,991.72 is: 11,989.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,710.24 : 40,071.08 = 7,991.72 : x
  2. Step 2: Convert to fraction form
    26,710.24/40,071.08 = 7,991.72/x
  3. Step 3: Cross multiply
    26,710.24x = 40,071.08 × 7,991.72
  4. Step 4: Simplify right side
    26,710.24x = 320,236,851.46
  5. Step 5: Solve for x
    x = 320,236,851.46/26,710.24
  6. Step 6: Final answer
    x = 11,989.29

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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.