Home / 30,493.53-42,082.37-18,854.28

Finding the Fourth Proportional to 30,493.53, 42,082.37 and 18,854.28

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Solution

The fourth proportional to 30,493.53, 42,082.37 and 18,854.28 is: 26,019.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,493.53 : 42,082.37 = 18,854.28 : x
  2. Step 2: Convert to fraction form
    30,493.53/42,082.37 = 18,854.28/x
  3. Step 3: Cross multiply
    30,493.53x = 42,082.37 × 18,854.28
  4. Step 4: Simplify right side
    30,493.53x = 793,432,692.77
  5. Step 5: Solve for x
    x = 793,432,692.77/30,493.53
  6. Step 6: Final answer
    x = 26,019.71

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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.