Home / 28,265.08-39,005.96-15,692.28

Finding the Fourth Proportional to 28,265.08, 39,005.96 and 15,692.28

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Solution

The fourth proportional to 28,265.08, 39,005.96 and 15,692.28 is: 21,655.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.08 : 39,005.96 = 15,692.28 : x
  2. Step 2: Convert to fraction form
    28,265.08/39,005.96 = 15,692.28/x
  3. Step 3: Cross multiply
    28,265.08x = 39,005.96 × 15,692.28
  4. Step 4: Simplify right side
    28,265.08x = 612,092,445.99
  5. Step 5: Solve for x
    x = 612,092,445.99/28,265.08
  6. Step 6: Final answer
    x = 21,655.43

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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.