Home / 19,088.70-28,654.65-11,301.90

Finding the Fourth Proportional to 19,088.70, 28,654.65 and 11,301.90

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Solution

The fourth proportional to 19,088.70, 28,654.65 and 11,301.90 is: 16,965.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,088.70 : 28,654.65 = 11,301.90 : x
  2. Step 2: Convert to fraction form
    19,088.70/28,654.65 = 11,301.90/x
  3. Step 3: Cross multiply
    19,088.70x = 28,654.65 × 11,301.90
  4. Step 4: Simplify right side
    19,088.70x = 323,851,988.84
  5. Step 5: Solve for x
    x = 323,851,988.84/19,088.70
  6. Step 6: Final answer
    x = 16,965.64

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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.