Home / 19,207.17-28,814.67-10,890.90

Finding the Fourth Proportional to 19,207.17, 28,814.67 and 10,890.90

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Solution

The fourth proportional to 19,207.17, 28,814.67 and 10,890.90 is: 16,338.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,207.17 : 28,814.67 = 10,890.90 : x
  2. Step 2: Convert to fraction form
    19,207.17/28,814.67 = 10,890.90/x
  3. Step 3: Cross multiply
    19,207.17x = 28,814.67 × 10,890.90
  4. Step 4: Simplify right side
    19,207.17x = 313,817,689.50
  5. Step 5: Solve for x
    x = 313,817,689.50/19,207.17
  6. Step 6: Final answer
    x = 16,338.57

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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.