Home / 38,962.78-58,407.40-18,959.62

Finding the Fourth Proportional to 38,962.78, 58,407.40 and 18,959.62

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Solution

The fourth proportional to 38,962.78, 58,407.40 and 18,959.62 is: 28,421.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,962.78 : 58,407.40 = 18,959.62 : x
  2. Step 2: Convert to fraction form
    38,962.78/58,407.40 = 18,959.62/x
  3. Step 3: Cross multiply
    38,962.78x = 58,407.40 × 18,959.62
  4. Step 4: Simplify right side
    38,962.78x = 1,107,382,109.19
  5. Step 5: Solve for x
    x = 1,107,382,109.19/38,962.78
  6. Step 6: Final answer
    x = 28,421.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.