Home / 39,130.25-53,998.28-21,224.66

Finding the Fourth Proportional to 39,130.25, 53,998.28 and 21,224.66

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Solution

The fourth proportional to 39,130.25, 53,998.28 and 21,224.66 is: 29,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.25 : 53,998.28 = 21,224.66 : x
  2. Step 2: Convert to fraction form
    39,130.25/53,998.28 = 21,224.66/x
  3. Step 3: Cross multiply
    39,130.25x = 53,998.28 × 21,224.66
  4. Step 4: Simplify right side
    39,130.25x = 1,146,094,837.06
  5. Step 5: Solve for x
    x = 1,146,094,837.06/39,130.25
  6. Step 6: Final answer
    x = 29,289.23

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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.