Home / 38,335.05-52,905.69-21,345.30

Finding the Fourth Proportional to 38,335.05, 52,905.69 and 21,345.30

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Solution

The fourth proportional to 38,335.05, 52,905.69 and 21,345.30 is: 29,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,335.05 : 52,905.69 = 21,345.30 : x
  2. Step 2: Convert to fraction form
    38,335.05/52,905.69 = 21,345.30/x
  3. Step 3: Cross multiply
    38,335.05x = 52,905.69 × 21,345.30
  4. Step 4: Simplify right side
    38,335.05x = 1,129,287,824.76
  5. Step 5: Solve for x
    x = 1,129,287,824.76/38,335.05
  6. Step 6: Final answer
    x = 29,458.36

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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.