Home / 28,000.11-42,000.27-19,208.37

Finding the Fourth Proportional to 28,000.11, 42,000.27 and 19,208.37

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Solution

The fourth proportional to 28,000.11, 42,000.27 and 19,208.37 is: 28,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.11 : 42,000.27 = 19,208.37 : x
  2. Step 2: Convert to fraction form
    28,000.11/42,000.27 = 19,208.37/x
  3. Step 3: Cross multiply
    28,000.11x = 42,000.27 × 19,208.37
  4. Step 4: Simplify right side
    28,000.11x = 806,756,726.26
  5. Step 5: Solve for x
    x = 806,756,726.26/28,000.11
  6. Step 6: Final answer
    x = 28,812.63

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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.