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Finding the Fourth Proportional to 34,988.32, 48,282.06 and 19,878.88

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Solution

The fourth proportional to 34,988.32, 48,282.06 and 19,878.88 is: 27,431.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,988.32 : 48,282.06 = 19,878.88 : x
  2. Step 2: Convert to fraction form
    34,988.32/48,282.06 = 19,878.88/x
  3. Step 3: Cross multiply
    34,988.32x = 48,282.06 × 19,878.88
  4. Step 4: Simplify right side
    34,988.32x = 959,793,276.89
  5. Step 5: Solve for x
    x = 959,793,276.89/34,988.32
  6. Step 6: Final answer
    x = 27,431.82

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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.