Home / 30,500.76-42,053.09-23,339.55

Finding the Fourth Proportional to 30,500.76, 42,053.09 and 23,339.55

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Solution

The fourth proportional to 30,500.76, 42,053.09 and 23,339.55 is: 32,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,500.76 : 42,053.09 = 23,339.55 : x
  2. Step 2: Convert to fraction form
    30,500.76/42,053.09 = 23,339.55/x
  3. Step 3: Cross multiply
    30,500.76x = 42,053.09 × 23,339.55
  4. Step 4: Simplify right side
    30,500.76x = 981,500,196.71
  5. Step 5: Solve for x
    x = 981,500,196.71/30,500.76
  6. Step 6: Final answer
    x = 32,179.53

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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.