Home / 15,152.91-22,820.52-13,419.72

Finding the Fourth Proportional to 15,152.91, 22,820.52 and 13,419.72

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Solution

The fourth proportional to 15,152.91, 22,820.52 and 13,419.72 is: 20,210.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.91 : 22,820.52 = 13,419.72 : x
  2. Step 2: Convert to fraction form
    15,152.91/22,820.52 = 13,419.72/x
  3. Step 3: Cross multiply
    15,152.91x = 22,820.52 × 13,419.72
  4. Step 4: Simplify right side
    15,152.91x = 306,244,988.65
  5. Step 5: Solve for x
    x = 306,244,988.65/15,152.91
  6. Step 6: Final answer
    x = 20,210.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.