Home / 29,178.57-40,210.25-21,208.17

Finding the Fourth Proportional to 29,178.57, 40,210.25 and 21,208.17

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Solution

The fourth proportional to 29,178.57, 40,210.25 and 21,208.17 is: 29,226.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,178.57 : 40,210.25 = 21,208.17 : x
  2. Step 2: Convert to fraction form
    29,178.57/40,210.25 = 21,208.17/x
  3. Step 3: Cross multiply
    29,178.57x = 40,210.25 × 21,208.17
  4. Step 4: Simplify right side
    29,178.57x = 852,785,711.70
  5. Step 5: Solve for x
    x = 852,785,711.70/29,178.57
  6. Step 6: Final answer
    x = 29,226.44

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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.