Home / 22,721.91-31,358.66-13,298.37

Finding the Fourth Proportional to 22,721.91, 31,358.66 and 13,298.37

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Solution

The fourth proportional to 22,721.91, 31,358.66 and 13,298.37 is: 18,353.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.91 : 31,358.66 = 13,298.37 : x
  2. Step 2: Convert to fraction form
    22,721.91/31,358.66 = 13,298.37/x
  3. Step 3: Cross multiply
    22,721.91x = 31,358.66 × 13,298.37
  4. Step 4: Simplify right side
    22,721.91x = 417,018,954.10
  5. Step 5: Solve for x
    x = 417,018,954.10/22,721.91
  6. Step 6: Final answer
    x = 18,353.17

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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.