Home / 31,805.04-47,707.73-18,648.18

Finding the Fourth Proportional to 31,805.04, 47,707.73 and 18,648.18

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Solution

The fourth proportional to 31,805.04, 47,707.73 and 18,648.18 is: 27,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,805.04 : 47,707.73 = 18,648.18 : x
  2. Step 2: Convert to fraction form
    31,805.04/47,707.73 = 18,648.18/x
  3. Step 3: Cross multiply
    31,805.04x = 47,707.73 × 18,648.18
  4. Step 4: Simplify right side
    31,805.04x = 889,662,243.19
  5. Step 5: Solve for x
    x = 889,662,243.19/31,805.04
  6. Step 6: Final answer
    x = 27,972.37

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1.5x scale

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.