Home / 38,012.47-52,454.95-21,015.70

Finding the Fourth Proportional to 38,012.47, 52,454.95 and 21,015.70

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Solution

The fourth proportional to 38,012.47, 52,454.95 and 21,015.70 is: 29,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,012.47 : 52,454.95 = 21,015.70 : x
  2. Step 2: Convert to fraction form
    38,012.47/52,454.95 = 21,015.70/x
  3. Step 3: Cross multiply
    38,012.47x = 52,454.95 × 21,015.70
  4. Step 4: Simplify right side
    38,012.47x = 1,102,377,492.72
  5. Step 5: Solve for x
    x = 1,102,377,492.72/38,012.47
  6. Step 6: Final answer
    x = 29,000.42

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Half scale
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Double scale
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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.