Home / 28,197.48-42,206.94-19,838.76

Finding the Fourth Proportional to 28,197.48, 42,206.94 and 19,838.76

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Solution

The fourth proportional to 28,197.48, 42,206.94 and 19,838.76 is: 29,695.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197.48 : 42,206.94 = 19,838.76 : x
  2. Step 2: Convert to fraction form
    28,197.48/42,206.94 = 19,838.76/x
  3. Step 3: Cross multiply
    28,197.48x = 42,206.94 × 19,838.76
  4. Step 4: Simplify right side
    28,197.48x = 837,333,352.99
  5. Step 5: Solve for x
    x = 837,333,352.99/28,197.48
  6. Step 6: Final answer
    x = 29,695.33

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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.