Home / 22,307.51-30,784.32-12,876.08

Finding the Fourth Proportional to 22,307.51, 30,784.32 and 12,876.08

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Solution

The fourth proportional to 22,307.51, 30,784.32 and 12,876.08 is: 17,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,307.51 : 30,784.32 = 12,876.08 : x
  2. Step 2: Convert to fraction form
    22,307.51/30,784.32 = 12,876.08/x
  3. Step 3: Cross multiply
    22,307.51x = 30,784.32 × 12,876.08
  4. Step 4: Simplify right side
    22,307.51x = 396,381,213.14
  5. Step 5: Solve for x
    x = 396,381,213.14/22,307.51
  6. Step 6: Final answer
    x = 17,768.96

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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.