Home / 38,500.48-53,131.44-21,730.24

Finding the Fourth Proportional to 38,500.48, 53,131.44 and 21,730.24

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Solution

The fourth proportional to 38,500.48, 53,131.44 and 21,730.24 is: 29,988.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,500.48 : 53,131.44 = 21,730.24 : x
  2. Step 2: Convert to fraction form
    38,500.48/53,131.44 = 21,730.24/x
  3. Step 3: Cross multiply
    38,500.48x = 53,131.44 × 21,730.24
  4. Step 4: Simplify right side
    38,500.48x = 1,154,558,942.75
  5. Step 5: Solve for x
    x = 1,154,558,942.75/38,500.48
  6. Step 6: Final answer
    x = 29,988.17

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Half 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.