Home / 22,472.03-31,010.09-12,400.45

Finding the Fourth Proportional to 22,472.03, 31,010.09 and 12,400.45

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Solution

The fourth proportional to 22,472.03, 31,010.09 and 12,400.45 is: 17,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,472.03 : 31,010.09 = 12,400.45 : x
  2. Step 2: Convert to fraction form
    22,472.03/31,010.09 = 12,400.45/x
  3. Step 3: Cross multiply
    22,472.03x = 31,010.09 × 12,400.45
  4. Step 4: Simplify right side
    22,472.03x = 384,539,070.54
  5. Step 5: Solve for x
    x = 384,539,070.54/22,472.03
  6. Step 6: Final answer
    x = 17,111.90

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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.