Home / 31,821.81-47,710.00-14,945.40

Finding the Fourth Proportional to 31,821.81, 47,710.00 and 14,945.40

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Solution

The fourth proportional to 31,821.81, 47,710.00 and 14,945.40 is: 22,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.81 : 47,710.00 = 14,945.40 : x
  2. Step 2: Convert to fraction form
    31,821.81/47,710.00 = 14,945.40/x
  3. Step 3: Cross multiply
    31,821.81x = 47,710.00 × 14,945.40
  4. Step 4: Simplify right side
    31,821.81x = 713,044,720.72
  5. Step 5: Solve for x
    x = 713,044,720.72/31,821.81
  6. Step 6: Final answer
    x = 22,407.42

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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.