Home / 39,078.16-58,522.20-18,307.60

Finding the Fourth Proportional to 39,078.16, 58,522.20 and 18,307.60

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Solution

The fourth proportional to 39,078.16, 58,522.20 and 18,307.60 is: 27,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,078.16 : 58,522.20 = 18,307.60 : x
  2. Step 2: Convert to fraction form
    39,078.16/58,522.20 = 18,307.60/x
  3. Step 3: Cross multiply
    39,078.16x = 58,522.20 × 18,307.60
  4. Step 4: Simplify right side
    39,078.16x = 1,071,401,028.72
  5. Step 5: Solve for x
    x = 1,071,401,028.72/39,078.16
  6. Step 6: Final answer
    x = 27,416.88

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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.