Home / 28,051.96-38,709.02-15,475.90

Finding the Fourth Proportional to 28,051.96, 38,709.02 and 15,475.90

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Solution

The fourth proportional to 28,051.96, 38,709.02 and 15,475.90 is: 21,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,051.96 : 38,709.02 = 15,475.90 : x
  2. Step 2: Convert to fraction form
    28,051.96/38,709.02 = 15,475.90/x
  3. Step 3: Cross multiply
    28,051.96x = 38,709.02 × 15,475.90
  4. Step 4: Simplify right side
    28,051.96x = 599,056,922.62
  5. Step 5: Solve for x
    x = 599,056,922.62/28,051.96
  6. Step 6: Final answer
    x = 21,355.26

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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.