Home / 15,433.56-21,339.72-14,724

Finding the Fourth Proportional to 15,433.56, 21,339.72 and 14,724

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Solution

The fourth proportional to 15,433.56, 21,339.72 and 14,724 is: 20,358.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.56 : 21,339.72 = 14,724 : x
  2. Step 2: Convert to fraction form
    15,433.56/21,339.72 = 14,724/x
  3. Step 3: Cross multiply
    15,433.56x = 21,339.72 × 14,724
  4. Step 4: Simplify right side
    15,433.56x = 314,206,037.28
  5. Step 5: Solve for x
    x = 314,206,037.28/15,433.56
  6. Step 6: Final answer
    x = 20,358.62

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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.