Home / 35,278.89-48,692.40-21,139.95

Finding the Fourth Proportional to 35,278.89, 48,692.40 and 21,139.95

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Solution

The fourth proportional to 35,278.89, 48,692.40 and 21,139.95 is: 29,177.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,278.89 : 48,692.40 = 21,139.95 : x
  2. Step 2: Convert to fraction form
    35,278.89/48,692.40 = 21,139.95/x
  3. Step 3: Cross multiply
    35,278.89x = 48,692.40 × 21,139.95
  4. Step 4: Simplify right side
    35,278.89x = 1,029,354,901.38
  5. Step 5: Solve for x
    x = 1,029,354,901.38/35,278.89
  6. Step 6: Final answer
    x = 29,177.64

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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.