Home / 27,278.30-40,943.55-14,140.10

Finding the Fourth Proportional to 27,278.30, 40,943.55 and 14,140.10

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Solution

The fourth proportional to 27,278.30, 40,943.55 and 14,140.10 is: 21,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,278.30 : 40,943.55 = 14,140.10 : x
  2. Step 2: Convert to fraction form
    27,278.30/40,943.55 = 14,140.10/x
  3. Step 3: Cross multiply
    27,278.30x = 40,943.55 × 14,140.10
  4. Step 4: Simplify right side
    27,278.30x = 578,945,891.36
  5. Step 5: Solve for x
    x = 578,945,891.36/27,278.30
  6. Step 6: Final answer
    x = 21,223.68

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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.