Home / 31,701.51-47,552.81-11,989.35

Finding the Fourth Proportional to 31,701.51, 47,552.81 and 11,989.35

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Solution

The fourth proportional to 31,701.51, 47,552.81 and 11,989.35 is: 17,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.51 : 47,552.81 = 11,989.35 : x
  2. Step 2: Convert to fraction form
    31,701.51/47,552.81 = 11,989.35/x
  3. Step 3: Cross multiply
    31,701.51x = 47,552.81 × 11,989.35
  4. Step 4: Simplify right side
    31,701.51x = 570,127,222.63
  5. Step 5: Solve for x
    x = 570,127,222.63/31,701.51
  6. Step 6: Final answer
    x = 17,984.23

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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.