Home / 26,077.76-35,945.29-20,403.40

Finding the Fourth Proportional to 26,077.76, 35,945.29 and 20,403.40

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Solution

The fourth proportional to 26,077.76, 35,945.29 and 20,403.40 is: 28,123.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,077.76 : 35,945.29 = 20,403.40 : x
  2. Step 2: Convert to fraction form
    26,077.76/35,945.29 = 20,403.40/x
  3. Step 3: Cross multiply
    26,077.76x = 35,945.29 × 20,403.40
  4. Step 4: Simplify right side
    26,077.76x = 733,406,129.99
  5. Step 5: Solve for x
    x = 733,406,129.99/26,077.76
  6. Step 6: Final answer
    x = 28,123.82

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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.