Home / 28,010.54-38,656.41-15,435.29

Finding the Fourth Proportional to 28,010.54, 38,656.41 and 15,435.29

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Solution

The fourth proportional to 28,010.54, 38,656.41 and 15,435.29 is: 21,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.54 : 38,656.41 = 15,435.29 : x
  2. Step 2: Convert to fraction form
    28,010.54/38,656.41 = 15,435.29/x
  3. Step 3: Cross multiply
    28,010.54x = 38,656.41 × 15,435.29
  4. Step 4: Simplify right side
    28,010.54x = 596,672,705.43
  5. Step 5: Solve for x
    x = 596,672,705.43/28,010.54
  6. Step 6: Final answer
    x = 21,301.72

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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.