Home / 39,570.13-54,606.58-21,664.81

Finding the Fourth Proportional to 39,570.13, 54,606.58 and 21,664.81

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Solution

The fourth proportional to 39,570.13, 54,606.58 and 21,664.81 is: 29,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.13 : 54,606.58 = 21,664.81 : x
  2. Step 2: Convert to fraction form
    39,570.13/54,606.58 = 21,664.81/x
  3. Step 3: Cross multiply
    39,570.13x = 54,606.58 × 21,664.81
  4. Step 4: Simplify right side
    39,570.13x = 1,183,041,180.45
  5. Step 5: Solve for x
    x = 1,183,041,180.45/39,570.13
  6. Step 6: Final answer
    x = 29,897.33

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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.