Home / 35,483.11-48,967.82-20,378.84

Finding the Fourth Proportional to 35,483.11, 48,967.82 and 20,378.84

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Solution

The fourth proportional to 35,483.11, 48,967.82 and 20,378.84 is: 28,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,483.11 : 48,967.82 = 20,378.84 : x
  2. Step 2: Convert to fraction form
    35,483.11/48,967.82 = 20,378.84/x
  3. Step 3: Cross multiply
    35,483.11x = 48,967.82 × 20,378.84
  4. Step 4: Simplify right side
    35,483.11x = 997,907,488.69
  5. Step 5: Solve for x
    x = 997,907,488.69/35,483.11
  6. Step 6: Final answer
    x = 28,123.45

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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.