Home / 28,011.25-38,647.87-19,503.82

Finding the Fourth Proportional to 28,011.25, 38,647.87 and 19,503.82

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Solution

The fourth proportional to 28,011.25, 38,647.87 and 19,503.82 is: 26,909.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.25 : 38,647.87 = 19,503.82 : x
  2. Step 2: Convert to fraction form
    28,011.25/38,647.87 = 19,503.82/x
  3. Step 3: Cross multiply
    28,011.25x = 38,647.87 × 19,503.82
  4. Step 4: Simplify right side
    28,011.25x = 753,781,099.41
  5. Step 5: Solve for x
    x = 753,781,099.41/28,011.25
  6. Step 6: Final answer
    x = 26,909.94

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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.