Home / 22,417.36-30,934.86-12,988.96

Finding the Fourth Proportional to 22,417.36, 30,934.86 and 12,988.96

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Solution

The fourth proportional to 22,417.36, 30,934.86 and 12,988.96 is: 17,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,417.36 : 30,934.86 = 12,988.96 : x
  2. Step 2: Convert to fraction form
    22,417.36/30,934.86 = 12,988.96/x
  3. Step 3: Cross multiply
    22,417.36x = 30,934.86 × 12,988.96
  4. Step 4: Simplify right side
    22,417.36x = 401,811,659.15
  5. Step 5: Solve for x
    x = 401,811,659.15/22,417.36
  6. Step 6: Final answer
    x = 17,924.13

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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.