Home / 39,659.24-54,728.81-21,754.08

Finding the Fourth Proportional to 39,659.24, 54,728.81 and 21,754.08

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Solution

The fourth proportional to 39,659.24, 54,728.81 and 21,754.08 is: 30,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,659.24 : 54,728.81 = 21,754.08 : x
  2. Step 2: Convert to fraction form
    39,659.24/54,728.81 = 21,754.08/x
  3. Step 3: Cross multiply
    39,659.24x = 54,728.81 × 21,754.08
  4. Step 4: Simplify right side
    39,659.24x = 1,190,574,802.27
  5. Step 5: Solve for x
    x = 1,190,574,802.27/39,659.24
  6. Step 6: Final answer
    x = 30,020.12

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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.