Home / 28,008.48-38,651.52-15,432.96

Finding the Fourth Proportional to 28,008.48, 38,651.52 and 15,432.96

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Solution

The fourth proportional to 28,008.48, 38,651.52 and 15,432.96 is: 21,297.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.48 : 38,651.52 = 15,432.96 : x
  2. Step 2: Convert to fraction form
    28,008.48/38,651.52 = 15,432.96/x
  3. Step 3: Cross multiply
    28,008.48x = 38,651.52 × 15,432.96
  4. Step 4: Simplify right side
    28,008.48x = 596,507,362.10
  5. Step 5: Solve for x
    x = 596,507,362.10/28,008.48
  6. Step 6: Final answer
    x = 21,297.38

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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.