Home / 40,117.65-55,363.22-21,969.14

Finding the Fourth Proportional to 40,117.65, 55,363.22 and 21,969.14

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Solution

The fourth proportional to 40,117.65, 55,363.22 and 21,969.14 is: 30,317.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,117.65 : 55,363.22 = 21,969.14 : x
  2. Step 2: Convert to fraction form
    40,117.65/55,363.22 = 21,969.14/x
  3. Step 3: Cross multiply
    40,117.65x = 55,363.22 × 21,969.14
  4. Step 4: Simplify right side
    40,117.65x = 1,216,282,026.75
  5. Step 5: Solve for x
    x = 1,216,282,026.75/40,117.65
  6. Step 6: Final answer
    x = 30,317.88

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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.