Home / 38,998-53,826.96-22,240.72

Finding the Fourth Proportional to 38,998, 53,826.96 and 22,240.72

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Solution

The fourth proportional to 38,998, 53,826.96 and 22,240.72 is: 30,697.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,998 : 53,826.96 = 22,240.72 : x
  2. Step 2: Convert to fraction form
    38,998/53,826.96 = 22,240.72/x
  3. Step 3: Cross multiply
    38,998x = 53,826.96 × 22,240.72
  4. Step 4: Simplify right side
    38,998x = 1,197,150,345.81
  5. Step 5: Solve for x
    x = 1,197,150,345.81/38,998
  6. Step 6: Final answer
    x = 30,697.74

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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.