Home / 22,451.51-30,985.16-12,892.65

Finding the Fourth Proportional to 22,451.51, 30,985.16 and 12,892.65

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Solution

The fourth proportional to 22,451.51, 30,985.16 and 12,892.65 is: 17,793.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,451.51 : 30,985.16 = 12,892.65 : x
  2. Step 2: Convert to fraction form
    22,451.51/30,985.16 = 12,892.65/x
  3. Step 3: Cross multiply
    22,451.51x = 30,985.16 × 12,892.65
  4. Step 4: Simplify right side
    22,451.51x = 399,480,889.23
  5. Step 5: Solve for x
    x = 399,480,889.23/22,451.51
  6. Step 6: Final answer
    x = 17,793.05

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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.