Home / 21,875.57-30,234.87-19,283.97

Finding the Fourth Proportional to 21,875.57, 30,234.87 and 19,283.97

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Solution

The fourth proportional to 21,875.57, 30,234.87 and 19,283.97 is: 26,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,875.57 : 30,234.87 = 19,283.97 : x
  2. Step 2: Convert to fraction form
    21,875.57/30,234.87 = 19,283.97/x
  3. Step 3: Cross multiply
    21,875.57x = 30,234.87 × 19,283.97
  4. Step 4: Simplify right side
    21,875.57x = 583,048,439.41
  5. Step 5: Solve for x
    x = 583,048,439.41/21,875.57
  6. Step 6: Final answer
    x = 26,652.95

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Double scale
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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.