Home / 28,114.60-38,795.84-15,539.34

Finding the Fourth Proportional to 28,114.60, 38,795.84 and 15,539.34

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Solution

The fourth proportional to 28,114.60, 38,795.84 and 15,539.34 is: 21,443.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.60 : 38,795.84 = 15,539.34 : x
  2. Step 2: Convert to fraction form
    28,114.60/38,795.84 = 15,539.34/x
  3. Step 3: Cross multiply
    28,114.60x = 38,795.84 × 15,539.34
  4. Step 4: Simplify right side
    28,114.60x = 602,861,748.35
  5. Step 5: Solve for x
    x = 602,861,748.35/28,114.60
  6. Step 6: Final answer
    x = 21,443.01

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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.