Home / 28,113.60-38,794.46-15,538.34

Finding the Fourth Proportional to 28,113.60, 38,794.46 and 15,538.34

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Solution

The fourth proportional to 28,113.60, 38,794.46 and 15,538.34 is: 21,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.60 : 38,794.46 = 15,538.34 : x
  2. Step 2: Convert to fraction form
    28,113.60/38,794.46 = 15,538.34/x
  3. Step 3: Cross multiply
    28,113.60x = 38,794.46 × 15,538.34
  4. Step 4: Simplify right side
    28,113.60x = 602,801,509.60
  5. Step 5: Solve for x
    x = 602,801,509.60/28,113.60
  6. Step 6: Final answer
    x = 21,441.63

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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.