Home / 39,048.62-53,887.20-21,143.48

Finding the Fourth Proportional to 39,048.62, 53,887.20 and 21,143.48

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Solution

The fourth proportional to 39,048.62, 53,887.20 and 21,143.48 is: 29,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,048.62 : 53,887.20 = 21,143.48 : x
  2. Step 2: Convert to fraction form
    39,048.62/53,887.20 = 21,143.48/x
  3. Step 3: Cross multiply
    39,048.62x = 53,887.20 × 21,143.48
  4. Step 4: Simplify right side
    39,048.62x = 1,139,362,935.46
  5. Step 5: Solve for x
    x = 1,139,362,935.46/39,048.62
  6. Step 6: Final answer
    x = 29,178.06

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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.