Home / 39,035.52-53,868.24-21,130.47

Finding the Fourth Proportional to 39,035.52, 53,868.24 and 21,130.47

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Solution

The fourth proportional to 39,035.52, 53,868.24 and 21,130.47 is: 29,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,035.52 : 53,868.24 = 21,130.47 : x
  2. Step 2: Convert to fraction form
    39,035.52/53,868.24 = 21,130.47/x
  3. Step 3: Cross multiply
    39,035.52x = 53,868.24 × 21,130.47
  4. Step 4: Simplify right side
    39,035.52x = 1,138,261,229.27
  5. Step 5: Solve for x
    x = 1,138,261,229.27/39,035.52
  6. Step 6: Final answer
    x = 29,159.63

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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.