Home / 28,577.76-39,438.72-17,247.07

Finding the Fourth Proportional to 28,577.76, 39,438.72 and 17,247.07

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Solution

The fourth proportional to 28,577.76, 39,438.72 and 17,247.07 is: 23,801.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,577.76 : 39,438.72 = 17,247.07 : x
  2. Step 2: Convert to fraction form
    28,577.76/39,438.72 = 17,247.07/x
  3. Step 3: Cross multiply
    28,577.76x = 39,438.72 × 17,247.07
  4. Step 4: Simplify right side
    28,577.76x = 680,202,364.55
  5. Step 5: Solve for x
    x = 680,202,364.55/28,577.76
  6. Step 6: Final answer
    x = 23,801.81

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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.