Home / 15,353.92-21,172.56-14,460.80

Finding the Fourth Proportional to 15,353.92, 21,172.56 and 14,460.80

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Solution

The fourth proportional to 15,353.92, 21,172.56 and 14,460.80 is: 19,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.92 : 21,172.56 = 14,460.80 : x
  2. Step 2: Convert to fraction form
    15,353.92/21,172.56 = 14,460.80/x
  3. Step 3: Cross multiply
    15,353.92x = 21,172.56 × 14,460.80
  4. Step 4: Simplify right side
    15,353.92x = 306,172,155.65
  5. Step 5: Solve for x
    x = 306,172,155.65/15,353.92
  6. Step 6: Final answer
    x = 19,940.98

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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.