Home / 38,658.45-58,009.25-20,888.77

Finding the Fourth Proportional to 38,658.45, 58,009.25 and 20,888.77

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Solution

The fourth proportional to 38,658.45, 58,009.25 and 20,888.77 is: 31,344.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,658.45 : 58,009.25 = 20,888.77 : x
  2. Step 2: Convert to fraction form
    38,658.45/58,009.25 = 20,888.77/x
  3. Step 3: Cross multiply
    38,658.45x = 58,009.25 × 20,888.77
  4. Step 4: Simplify right side
    38,658.45x = 1,211,741,881.12
  5. Step 5: Solve for x
    x = 1,211,741,881.12/38,658.45
  6. Step 6: Final answer
    x = 31,344.81

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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.