Home / 39,433.73-54,418.65-21,528.89

Finding the Fourth Proportional to 39,433.73, 54,418.65 and 21,528.89

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Solution

The fourth proportional to 39,433.73, 54,418.65 and 21,528.89 is: 29,709.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,433.73 : 54,418.65 = 21,528.89 : x
  2. Step 2: Convert to fraction form
    39,433.73/54,418.65 = 21,528.89/x
  3. Step 3: Cross multiply
    39,433.73x = 54,418.65 × 21,528.89
  4. Step 4: Simplify right side
    39,433.73x = 1,171,572,857.71
  5. Step 5: Solve for x
    x = 1,171,572,857.71/39,433.73
  6. Step 6: Final answer
    x = 29,709.92

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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.