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Finding the Fourth Proportional to 19,241.52, 28,810.18 and 9,988.08

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Solution

The fourth proportional to 19,241.52, 28,810.18 and 9,988.08 is: 14,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.52 : 28,810.18 = 9,988.08 : x
  2. Step 2: Convert to fraction form
    19,241.52/28,810.18 = 9,988.08/x
  3. Step 3: Cross multiply
    19,241.52x = 28,810.18 × 9,988.08
  4. Step 4: Simplify right side
    19,241.52x = 287,758,382.65
  5. Step 5: Solve for x
    x = 287,758,382.65/19,241.52
  6. Step 6: Final answer
    x = 14,955.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.