Home / 38,910.24-53,692.02-21,911.76

Finding the Fourth Proportional to 38,910.24, 53,692.02 and 21,911.76

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Solution

The fourth proportional to 38,910.24, 53,692.02 and 21,911.76 is: 30,235.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910.24 : 53,692.02 = 21,911.76 : x
  2. Step 2: Convert to fraction form
    38,910.24/53,692.02 = 21,911.76/x
  3. Step 3: Cross multiply
    38,910.24x = 53,692.02 × 21,911.76
  4. Step 4: Simplify right side
    38,910.24x = 1,176,486,656.16
  5. Step 5: Solve for x
    x = 1,176,486,656.16/38,910.24
  6. Step 6: Final answer
    x = 30,235.91

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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.