Home / 39,295.14-54,226.98-21,390.09

Finding the Fourth Proportional to 39,295.14, 54,226.98 and 21,390.09

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Solution

The fourth proportional to 39,295.14, 54,226.98 and 21,390.09 is: 29,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,295.14 : 54,226.98 = 21,390.09 : x
  2. Step 2: Convert to fraction form
    39,295.14/54,226.98 = 21,390.09/x
  3. Step 3: Cross multiply
    39,295.14x = 54,226.98 × 21,390.09
  4. Step 4: Simplify right side
    39,295.14x = 1,159,919,982.63
  5. Step 5: Solve for x
    x = 1,159,919,982.63/39,295.14
  6. Step 6: Final answer
    x = 29,518.15

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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.