Home / 28,265.49-39,000.89-18,191.52

Finding the Fourth Proportional to 28,265.49, 39,000.89 and 18,191.52

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Solution

The fourth proportional to 28,265.49, 39,000.89 and 18,191.52 is: 25,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.49 : 39,000.89 = 18,191.52 : x
  2. Step 2: Convert to fraction form
    28,265.49/39,000.89 = 18,191.52/x
  3. Step 3: Cross multiply
    28,265.49x = 39,000.89 × 18,191.52
  4. Step 4: Simplify right side
    28,265.49x = 709,485,515.93
  5. Step 5: Solve for x
    x = 709,485,515.93/28,265.49
  6. Step 6: Final answer
    x = 25,100.77

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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.