Home / 19,331.04-28,991.82-5,291.10

Finding the Fourth Proportional to 19,331.04, 28,991.82 and 5,291.10

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Solution

The fourth proportional to 19,331.04, 28,991.82 and 5,291.10 is: 7,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.04 : 28,991.82 = 5,291.10 : x
  2. Step 2: Convert to fraction form
    19,331.04/28,991.82 = 5,291.10/x
  3. Step 3: Cross multiply
    19,331.04x = 28,991.82 × 5,291.10
  4. Step 4: Simplify right side
    19,331.04x = 153,398,618.80
  5. Step 5: Solve for x
    x = 153,398,618.80/19,331.04
  6. Step 6: Final answer
    x = 7,935.35

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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.