Home / 22,529.36-31,061.36-15,443.12

Finding the Fourth Proportional to 22,529.36, 31,061.36 and 15,443.12

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Solution

The fourth proportional to 22,529.36, 31,061.36 and 15,443.12 is: 21,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,529.36 : 31,061.36 = 15,443.12 : x
  2. Step 2: Convert to fraction form
    22,529.36/31,061.36 = 15,443.12/x
  3. Step 3: Cross multiply
    22,529.36x = 31,061.36 × 15,443.12
  4. Step 4: Simplify right side
    22,529.36x = 479,684,309.84
  5. Step 5: Solve for x
    x = 479,684,309.84/22,529.36
  6. Step 6: Final answer
    x = 21,291.52

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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.