Home / 39,707.33-54,795.73-21,802.18

Finding the Fourth Proportional to 39,707.33, 54,795.73 and 21,802.18

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Solution

The fourth proportional to 39,707.33, 54,795.73 and 21,802.18 is: 30,086.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,707.33 : 54,795.73 = 21,802.18 : x
  2. Step 2: Convert to fraction form
    39,707.33/54,795.73 = 21,802.18/x
  3. Step 3: Cross multiply
    39,707.33x = 54,795.73 × 21,802.18
  4. Step 4: Simplify right side
    39,707.33x = 1,194,666,368.69
  5. Step 5: Solve for x
    x = 1,194,666,368.69/39,707.33
  6. Step 6: Final answer
    x = 30,086.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.