Home / 19,331.40-28,996.02-5,290.41

Finding the Fourth Proportional to 19,331.40, 28,996.02 and 5,290.41

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Solution

The fourth proportional to 19,331.40, 28,996.02 and 5,290.41 is: 7,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.40 : 28,996.02 = 5,290.41 : x
  2. Step 2: Convert to fraction form
    19,331.40/28,996.02 = 5,290.41/x
  3. Step 3: Cross multiply
    19,331.40x = 28,996.02 × 5,290.41
  4. Step 4: Simplify right side
    19,331.40x = 153,400,834.17
  5. Step 5: Solve for x
    x = 153,400,834.17/19,331.40
  6. Step 6: Final answer
    x = 7,935.32

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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.