Home / 19,089.70-28,656.15-11,302.90

Finding the Fourth Proportional to 19,089.70, 28,656.15 and 11,302.90

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Solution

The fourth proportional to 19,089.70, 28,656.15 and 11,302.90 is: 16,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.70 : 28,656.15 = 11,302.90 : x
  2. Step 2: Convert to fraction form
    19,089.70/28,656.15 = 11,302.90/x
  3. Step 3: Cross multiply
    19,089.70x = 28,656.15 × 11,302.90
  4. Step 4: Simplify right side
    19,089.70x = 323,897,597.84
  5. Step 5: Solve for x
    x = 323,897,597.84/19,089.70
  6. Step 6: Final answer
    x = 16,967.14

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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.