Home / 26,756.81-40,139.76-13,436.15

Finding the Fourth Proportional to 26,756.81, 40,139.76 and 13,436.15

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Solution

The fourth proportional to 26,756.81, 40,139.76 and 13,436.15 is: 20,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,756.81 : 40,139.76 = 13,436.15 : x
  2. Step 2: Convert to fraction form
    26,756.81/40,139.76 = 13,436.15/x
  3. Step 3: Cross multiply
    26,756.81x = 40,139.76 × 13,436.15
  4. Step 4: Simplify right side
    26,756.81x = 539,323,836.32
  5. Step 5: Solve for x
    x = 539,323,836.32/26,756.81
  6. Step 6: Final answer
    x = 20,156.51

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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.