Home / 28,564.40-42,846.60-27,981.20

Finding the Fourth Proportional to 28,564.40, 42,846.60 and 27,981.20

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Solution

The fourth proportional to 28,564.40, 42,846.60 and 27,981.20 is: 41,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.40 : 42,846.60 = 27,981.20 : x
  2. Step 2: Convert to fraction form
    28,564.40/42,846.60 = 27,981.20/x
  3. Step 3: Cross multiply
    28,564.40x = 42,846.60 × 27,981.20
  4. Step 4: Simplify right side
    28,564.40x = 1,198,899,283.92
  5. Step 5: Solve for x
    x = 1,198,899,283.92/28,564.40
  6. Step 6: Final answer
    x = 41,971.80

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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.