Home / 28,222.40-38,948.38-15,647.96

Finding the Fourth Proportional to 28,222.40, 38,948.38 and 15,647.96

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Solution

The fourth proportional to 28,222.40, 38,948.38 and 15,647.96 is: 21,595.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.40 : 38,948.38 = 15,647.96 : x
  2. Step 2: Convert to fraction form
    28,222.40/38,948.38 = 15,647.96/x
  3. Step 3: Cross multiply
    28,222.40x = 38,948.38 × 15,647.96
  4. Step 4: Simplify right side
    28,222.40x = 609,462,692.30
  5. Step 5: Solve for x
    x = 609,462,692.30/28,222.40
  6. Step 6: Final answer
    x = 21,595.00

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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.