Home / 28,608.03-39,475.43-15,861.10

Finding the Fourth Proportional to 28,608.03, 39,475.43 and 15,861.10

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Solution

The fourth proportional to 28,608.03, 39,475.43 and 15,861.10 is: 21,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.03 : 39,475.43 = 15,861.10 : x
  2. Step 2: Convert to fraction form
    28,608.03/39,475.43 = 15,861.10/x
  3. Step 3: Cross multiply
    28,608.03x = 39,475.43 × 15,861.10
  4. Step 4: Simplify right side
    28,608.03x = 626,123,742.77
  5. Step 5: Solve for x
    x = 626,123,742.77/28,608.03
  6. Step 6: Final answer
    x = 21,886.29

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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.