Home / 31,937.13-47,911.47-13,207.00

Finding the Fourth Proportional to 31,937.13, 47,911.47 and 13,207.00

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Solution

The fourth proportional to 31,937.13, 47,911.47 and 13,207.00 is: 19,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,937.13 : 47,911.47 = 13,207.00 : x
  2. Step 2: Convert to fraction form
    31,937.13/47,911.47 = 13,207.00/x
  3. Step 3: Cross multiply
    31,937.13x = 47,911.47 × 13,207.00
  4. Step 4: Simplify right side
    31,937.13x = 632,766,664.51
  5. Step 5: Solve for x
    x = 632,766,664.51/31,937.13
  6. Step 6: Final answer
    x = 19,812.88

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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.