Home / 22,947.14-31,663.23-15,406.04

Finding the Fourth Proportional to 22,947.14, 31,663.23 and 15,406.04

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Solution

The fourth proportional to 22,947.14, 31,663.23 and 15,406.04 is: 21,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.14 : 31,663.23 = 15,406.04 : x
  2. Step 2: Convert to fraction form
    22,947.14/31,663.23 = 15,406.04/x
  3. Step 3: Cross multiply
    22,947.14x = 31,663.23 × 15,406.04
  4. Step 4: Simplify right side
    22,947.14x = 487,804,987.91
  5. Step 5: Solve for x
    x = 487,804,987.91/22,947.14
  6. Step 6: Final answer
    x = 21,257.77

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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.