Home / 15,438.40-23,157.29-15,028.34

Finding the Fourth Proportional to 15,438.40, 23,157.29 and 15,028.34

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Solution

The fourth proportional to 15,438.40, 23,157.29 and 15,028.34 is: 22,542.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.40 : 23,157.29 = 15,028.34 : x
  2. Step 2: Convert to fraction form
    15,438.40/23,157.29 = 15,028.34/x
  3. Step 3: Cross multiply
    15,438.40x = 23,157.29 × 15,028.34
  4. Step 4: Simplify right side
    15,438.40x = 348,015,549.38
  5. Step 5: Solve for x
    x = 348,015,549.38/15,438.40
  6. Step 6: Final answer
    x = 22,542.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.