Home / 31,938.51-47,913.53-13,208.37

Finding the Fourth Proportional to 31,938.51, 47,913.53 and 13,208.37

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Solution

The fourth proportional to 31,938.51, 47,913.53 and 13,208.37 is: 19,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.51 : 47,913.53 = 13,208.37 : x
  2. Step 2: Convert to fraction form
    31,938.51/47,913.53 = 13,208.37/x
  3. Step 3: Cross multiply
    31,938.51x = 47,913.53 × 13,208.37
  4. Step 4: Simplify right side
    31,938.51x = 632,859,632.25
  5. Step 5: Solve for x
    x = 632,859,632.25/31,938.51
  6. Step 6: Final answer
    x = 19,814.94

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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.