Home / 26,943.12-40,424.40-13,801.68

Finding the Fourth Proportional to 26,943.12, 40,424.40 and 13,801.68

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Solution

The fourth proportional to 26,943.12, 40,424.40 and 13,801.68 is: 20,707.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,943.12 : 40,424.40 = 13,801.68 : x
  2. Step 2: Convert to fraction form
    26,943.12/40,424.40 = 13,801.68/x
  3. Step 3: Cross multiply
    26,943.12x = 40,424.40 × 13,801.68
  4. Step 4: Simplify right side
    26,943.12x = 557,924,632.99
  5. Step 5: Solve for x
    x = 557,924,632.99/26,943.12
  6. Step 6: Final answer
    x = 20,707.50

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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.