Home / 26,089.12-39,143.28-10,511.20

Finding the Fourth Proportional to 26,089.12, 39,143.28 and 10,511.20

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Solution

The fourth proportional to 26,089.12, 39,143.28 and 10,511.20 is: 15,770.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,089.12 : 39,143.28 = 10,511.20 : x
  2. Step 2: Convert to fraction form
    26,089.12/39,143.28 = 10,511.20/x
  3. Step 3: Cross multiply
    26,089.12x = 39,143.28 × 10,511.20
  4. Step 4: Simplify right side
    26,089.12x = 411,442,844.74
  5. Step 5: Solve for x
    x = 411,442,844.74/26,089.12
  6. Step 6: Final answer
    x = 15,770.67

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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.