Home / 15,358.50-21,179.07-14,465.70

Finding the Fourth Proportional to 15,358.50, 21,179.07 and 14,465.70

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Solution

The fourth proportional to 15,358.50, 21,179.07 and 14,465.70 is: 19,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,358.50 : 21,179.07 = 14,465.70 : x
  2. Step 2: Convert to fraction form
    15,358.50/21,179.07 = 14,465.70/x
  3. Step 3: Cross multiply
    15,358.50x = 21,179.07 × 14,465.70
  4. Step 4: Simplify right side
    15,358.50x = 306,370,072.90
  5. Step 5: Solve for x
    x = 306,370,072.90/15,358.50
  6. Step 6: Final answer
    x = 19,947.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.