Home / 26,688.10-40,030.70-13,540.13

Finding the Fourth Proportional to 26,688.10, 40,030.70 and 13,540.13

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Solution

The fourth proportional to 26,688.10, 40,030.70 and 13,540.13 is: 20,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,688.10 : 40,030.70 = 13,540.13 : x
  2. Step 2: Convert to fraction form
    26,688.10/40,030.70 = 13,540.13/x
  3. Step 3: Cross multiply
    26,688.10x = 40,030.70 × 13,540.13
  4. Step 4: Simplify right side
    26,688.10x = 542,021,015.92
  5. Step 5: Solve for x
    x = 542,021,015.92/26,688.10
  6. Step 6: Final answer
    x = 20,309.47

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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.