Home / 39,645.72-59,478.50-27,981.72

Finding the Fourth Proportional to 39,645.72, 59,478.50 and 27,981.72

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Solution

The fourth proportional to 39,645.72, 59,478.50 and 27,981.72 is: 41,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,645.72 : 59,478.50 = 27,981.72 : x
  2. Step 2: Convert to fraction form
    39,645.72/59,478.50 = 27,981.72/x
  3. Step 3: Cross multiply
    39,645.72x = 59,478.50 × 27,981.72
  4. Step 4: Simplify right side
    39,645.72x = 1,664,310,733.02
  5. Step 5: Solve for x
    x = 1,664,310,733.02/39,645.72
  6. Step 6: Final answer
    x = 41,979.58

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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.