Home / 22,582.08-31,136.40-15,665.76

Finding the Fourth Proportional to 22,582.08, 31,136.40 and 15,665.76

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Solution

The fourth proportional to 22,582.08, 31,136.40 and 15,665.76 is: 21,600.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,582.08 : 31,136.40 = 15,665.76 : x
  2. Step 2: Convert to fraction form
    22,582.08/31,136.40 = 15,665.76/x
  3. Step 3: Cross multiply
    22,582.08x = 31,136.40 × 15,665.76
  4. Step 4: Simplify right side
    22,582.08x = 487,775,369.66
  5. Step 5: Solve for x
    x = 487,775,369.66/22,582.08
  6. Step 6: Final answer
    x = 21,600.11

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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.