Home / 26,870.94-40,306.43-20,642.10

Finding the Fourth Proportional to 26,870.94, 40,306.43 and 20,642.10

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Solution

The fourth proportional to 26,870.94, 40,306.43 and 20,642.10 is: 30,963.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,870.94 : 40,306.43 = 20,642.10 : x
  2. Step 2: Convert to fraction form
    26,870.94/40,306.43 = 20,642.10/x
  3. Step 3: Cross multiply
    26,870.94x = 40,306.43 × 20,642.10
  4. Step 4: Simplify right side
    26,870.94x = 832,009,255.49
  5. Step 5: Solve for x
    x = 832,009,255.49/26,870.94
  6. Step 6: Final answer
    x = 30,963.16

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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.