Home / 39,701.44-59,531.28-20,991.52

Finding the Fourth Proportional to 39,701.44, 59,531.28 and 20,991.52

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Solution

The fourth proportional to 39,701.44, 59,531.28 and 20,991.52 is: 31,476.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,701.44 : 59,531.28 = 20,991.52 : x
  2. Step 2: Convert to fraction form
    39,701.44/59,531.28 = 20,991.52/x
  3. Step 3: Cross multiply
    39,701.44x = 59,531.28 × 20,991.52
  4. Step 4: Simplify right side
    39,701.44x = 1,249,652,054.75
  5. Step 5: Solve for x
    x = 1,249,652,054.75/39,701.44
  6. Step 6: Final answer
    x = 31,476.24

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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.