Home / 28,289.14-39,071.82-18,841.30

Finding the Fourth Proportional to 28,289.14, 39,071.82 and 18,841.30

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Solution

The fourth proportional to 28,289.14, 39,071.82 and 18,841.30 is: 26,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,289.14 : 39,071.82 = 18,841.30 : x
  2. Step 2: Convert to fraction form
    28,289.14/39,071.82 = 18,841.30/x
  3. Step 3: Cross multiply
    28,289.14x = 39,071.82 × 18,841.30
  4. Step 4: Simplify right side
    28,289.14x = 736,163,882.17
  5. Step 5: Solve for x
    x = 736,163,882.17/28,289.14
  6. Step 6: Final answer
    x = 26,022.84

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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.