Home / 39,298.34-58,948.12-21,878.88

Finding the Fourth Proportional to 39,298.34, 58,948.12 and 21,878.88

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Solution

The fourth proportional to 39,298.34, 58,948.12 and 21,878.88 is: 32,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,298.34 : 58,948.12 = 21,878.88 : x
  2. Step 2: Convert to fraction form
    39,298.34/58,948.12 = 21,878.88/x
  3. Step 3: Cross multiply
    39,298.34x = 58,948.12 × 21,878.88
  4. Step 4: Simplify right side
    39,298.34x = 1,289,718,843.71
  5. Step 5: Solve for x
    x = 1,289,718,843.71/39,298.34
  6. Step 6: Final answer
    x = 32,818.66

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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.