Home / 22,975.20-31,703.36-12,902.88

Finding the Fourth Proportional to 22,975.20, 31,703.36 and 12,902.88

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Solution

The fourth proportional to 22,975.20, 31,703.36 and 12,902.88 is: 17,804.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,975.20 : 31,703.36 = 12,902.88 : x
  2. Step 2: Convert to fraction form
    22,975.20/31,703.36 = 12,902.88/x
  3. Step 3: Cross multiply
    22,975.20x = 31,703.36 × 12,902.88
  4. Step 4: Simplify right side
    22,975.20x = 409,064,649.68
  5. Step 5: Solve for x
    x = 409,064,649.68/22,975.20
  6. Step 6: Final answer
    x = 17,804.62

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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.