Home / 39,920.13-59,826.99-18,865.76

Finding the Fourth Proportional to 39,920.13, 59,826.99 and 18,865.76

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Solution

The fourth proportional to 39,920.13, 59,826.99 and 18,865.76 is: 28,273.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,920.13 : 59,826.99 = 18,865.76 : x
  2. Step 2: Convert to fraction form
    39,920.13/59,826.99 = 18,865.76/x
  3. Step 3: Cross multiply
    39,920.13x = 59,826.99 × 18,865.76
  4. Step 4: Simplify right side
    39,920.13x = 1,128,681,634.86
  5. Step 5: Solve for x
    x = 1,128,681,634.86/39,920.13
  6. Step 6: Final answer
    x = 28,273.50

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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.