Home / 19,158.28-28,702.86-10,933

Finding the Fourth Proportional to 19,158.28, 28,702.86 and 10,933

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Solution

The fourth proportional to 19,158.28, 28,702.86 and 10,933 is: 16,379.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,158.28 : 28,702.86 = 10,933 : x
  2. Step 2: Convert to fraction form
    19,158.28/28,702.86 = 10,933/x
  3. Step 3: Cross multiply
    19,158.28x = 28,702.86 × 10,933
  4. Step 4: Simplify right side
    19,158.28x = 313,808,368.38
  5. Step 5: Solve for x
    x = 313,808,368.38/19,158.28
  6. Step 6: Final answer
    x = 16,379.78

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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.