Home / 31,607.41-43,626.91-19,663.62

Finding the Fourth Proportional to 31,607.41, 43,626.91 and 19,663.62

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Solution

The fourth proportional to 31,607.41, 43,626.91 and 19,663.62 is: 27,141.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,607.41 : 43,626.91 = 19,663.62 : x
  2. Step 2: Convert to fraction form
    31,607.41/43,626.91 = 19,663.62/x
  3. Step 3: Cross multiply
    31,607.41x = 43,626.91 × 19,663.62
  4. Step 4: Simplify right side
    31,607.41x = 857,862,980.01
  5. Step 5: Solve for x
    x = 857,862,980.01/31,607.41
  6. Step 6: Final answer
    x = 27,141.20

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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.