Home / 15,339.24-21,229.02-14,971.23

Finding the Fourth Proportional to 15,339.24, 21,229.02 and 14,971.23

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Solution

The fourth proportional to 15,339.24, 21,229.02 and 14,971.23 is: 20,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.24 : 21,229.02 = 14,971.23 : x
  2. Step 2: Convert to fraction form
    15,339.24/21,229.02 = 14,971.23/x
  3. Step 3: Cross multiply
    15,339.24x = 21,229.02 × 14,971.23
  4. Step 4: Simplify right side
    15,339.24x = 317,824,541.09
  5. Step 5: Solve for x
    x = 317,824,541.09/15,339.24
  6. Step 6: Final answer
    x = 20,719.71

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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.