Home / 28,038.68-38,692.30-15,463.43

Finding the Fourth Proportional to 28,038.68, 38,692.30 and 15,463.43

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Solution

The fourth proportional to 28,038.68, 38,692.30 and 15,463.43 is: 21,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.68 : 38,692.30 = 15,463.43 : x
  2. Step 2: Convert to fraction form
    28,038.68/38,692.30 = 15,463.43/x
  3. Step 3: Cross multiply
    28,038.68x = 38,692.30 × 15,463.43
  4. Step 4: Simplify right side
    28,038.68x = 598,315,549.23
  5. Step 5: Solve for x
    x = 598,315,549.23/28,038.68
  6. Step 6: Final answer
    x = 21,338.94

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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.