Home / 39,838.08-59,707.60-20,105.76

Finding the Fourth Proportional to 39,838.08, 59,707.60 and 20,105.76

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Solution

The fourth proportional to 39,838.08, 59,707.60 and 20,105.76 is: 30,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,838.08 : 59,707.60 = 20,105.76 : x
  2. Step 2: Convert to fraction form
    39,838.08/59,707.60 = 20,105.76/x
  3. Step 3: Cross multiply
    39,838.08x = 59,707.60 × 20,105.76
  4. Step 4: Simplify right side
    39,838.08x = 1,200,466,675.78
  5. Step 5: Solve for x
    x = 1,200,466,675.78/39,838.08
  6. Step 6: Final answer
    x = 30,133.65

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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.