Home / 39,611.53-54,663.96-21,707.19

Finding the Fourth Proportional to 39,611.53, 54,663.96 and 21,707.19

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Solution

The fourth proportional to 39,611.53, 54,663.96 and 21,707.19 is: 29,955.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,611.53 : 54,663.96 = 21,707.19 : x
  2. Step 2: Convert to fraction form
    39,611.53/54,663.96 = 21,707.19/x
  3. Step 3: Cross multiply
    39,611.53x = 54,663.96 × 21,707.19
  4. Step 4: Simplify right side
    39,611.53x = 1,186,601,047.27
  5. Step 5: Solve for x
    x = 1,186,601,047.27/39,611.53
  6. Step 6: Final answer
    x = 29,955.95

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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.