Home / 19,280.40-28,947.22-13,342.70

Finding the Fourth Proportional to 19,280.40, 28,947.22 and 13,342.70

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Solution

The fourth proportional to 19,280.40, 28,947.22 and 13,342.70 is: 20,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.40 : 28,947.22 = 13,342.70 : x
  2. Step 2: Convert to fraction form
    19,280.40/28,947.22 = 13,342.70/x
  3. Step 3: Cross multiply
    19,280.40x = 28,947.22 × 13,342.70
  4. Step 4: Simplify right side
    19,280.40x = 386,234,072.29
  5. Step 5: Solve for x
    x = 386,234,072.29/19,280.40
  6. Step 6: Final answer
    x = 20,032.47

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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.