Home / 28,114.96-38,798.40-15,539.44

Finding the Fourth Proportional to 28,114.96, 38,798.40 and 15,539.44

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Solution

The fourth proportional to 28,114.96, 38,798.40 and 15,539.44 is: 21,444.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.96 : 38,798.40 = 15,539.44 : x
  2. Step 2: Convert to fraction form
    28,114.96/38,798.40 = 15,539.44/x
  3. Step 3: Cross multiply
    28,114.96x = 38,798.40 × 15,539.44
  4. Step 4: Simplify right side
    28,114.96x = 602,905,408.90
  5. Step 5: Solve for x
    x = 602,905,408.90/28,114.96
  6. Step 6: Final answer
    x = 21,444.29

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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.