Home / 38,210.40-52,730.22-21,217.20

Finding the Fourth Proportional to 38,210.40, 52,730.22 and 21,217.20

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Solution

The fourth proportional to 38,210.40, 52,730.22 and 21,217.20 is: 29,279.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,210.40 : 52,730.22 = 21,217.20 : x
  2. Step 2: Convert to fraction form
    38,210.40/52,730.22 = 21,217.20/x
  3. Step 3: Cross multiply
    38,210.40x = 52,730.22 × 21,217.20
  4. Step 4: Simplify right side
    38,210.40x = 1,118,787,623.78
  5. Step 5: Solve for x
    x = 1,118,787,623.78/38,210.40
  6. Step 6: Final answer
    x = 29,279.66

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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.