Home / 39,348.13-59,039.64-20,623.72

Finding the Fourth Proportional to 39,348.13, 59,039.64 and 20,623.72

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Solution

The fourth proportional to 39,348.13, 59,039.64 and 20,623.72 is: 30,944.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.13 : 59,039.64 = 20,623.72 : x
  2. Step 2: Convert to fraction form
    39,348.13/59,039.64 = 20,623.72/x
  3. Step 3: Cross multiply
    39,348.13x = 59,039.64 × 20,623.72
  4. Step 4: Simplify right side
    39,348.13x = 1,217,616,856.66
  5. Step 5: Solve for x
    x = 1,217,616,856.66/39,348.13
  6. Step 6: Final answer
    x = 30,944.72

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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.