Home / 22,509.36-31,072.68-15,472.08

Finding the Fourth Proportional to 22,509.36, 31,072.68 and 15,472.08

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Solution

The fourth proportional to 22,509.36, 31,072.68 and 15,472.08 is: 21,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,509.36 : 31,072.68 = 15,472.08 : x
  2. Step 2: Convert to fraction form
    22,509.36/31,072.68 = 15,472.08/x
  3. Step 3: Cross multiply
    22,509.36x = 31,072.68 × 15,472.08
  4. Step 4: Simplify right side
    22,509.36x = 480,758,990.77
  5. Step 5: Solve for x
    x = 480,758,990.77/22,509.36
  6. Step 6: Final answer
    x = 21,358.18

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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.