Home / 22,653.69-31,261.03-12,582.78

Finding the Fourth Proportional to 22,653.69, 31,261.03 and 12,582.78

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Solution

The fourth proportional to 22,653.69, 31,261.03 and 12,582.78 is: 17,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.69 : 31,261.03 = 12,582.78 : x
  2. Step 2: Convert to fraction form
    22,653.69/31,261.03 = 12,582.78/x
  3. Step 3: Cross multiply
    22,653.69x = 31,261.03 × 12,582.78
  4. Step 4: Simplify right side
    22,653.69x = 393,350,663.06
  5. Step 5: Solve for x
    x = 393,350,663.06/22,653.69
  6. Step 6: Final answer
    x = 17,363.65

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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.