Home / 22,988.98-31,725.54-12,919.36

Finding the Fourth Proportional to 22,988.98, 31,725.54 and 12,919.36

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Solution

The fourth proportional to 22,988.98, 31,725.54 and 12,919.36 is: 17,829.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,988.98 : 31,725.54 = 12,919.36 : x
  2. Step 2: Convert to fraction form
    22,988.98/31,725.54 = 12,919.36/x
  3. Step 3: Cross multiply
    22,988.98x = 31,725.54 × 12,919.36
  4. Step 4: Simplify right side
    22,988.98x = 409,873,672.45
  5. Step 5: Solve for x
    x = 409,873,672.45/22,988.98
  6. Step 6: Final answer
    x = 17,829.14

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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.