Home / 26,307.90-39,449.70-11,509.20

Finding the Fourth Proportional to 26,307.90, 39,449.70 and 11,509.20

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Solution

The fourth proportional to 26,307.90, 39,449.70 and 11,509.20 is: 17,258.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,307.90 : 39,449.70 = 11,509.20 : x
  2. Step 2: Convert to fraction form
    26,307.90/39,449.70 = 11,509.20/x
  3. Step 3: Cross multiply
    26,307.90x = 39,449.70 × 11,509.20
  4. Step 4: Simplify right side
    26,307.90x = 454,034,487.24
  5. Step 5: Solve for x
    x = 454,034,487.24/26,307.90
  6. Step 6: Final answer
    x = 17,258.48

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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.