Home / 39,048.12-53,886.51-21,142.98

Finding the Fourth Proportional to 39,048.12, 53,886.51 and 21,142.98

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Solution

The fourth proportional to 39,048.12, 53,886.51 and 21,142.98 is: 29,177.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,048.12 : 53,886.51 = 21,142.98 : x
  2. Step 2: Convert to fraction form
    39,048.12/53,886.51 = 21,142.98/x
  3. Step 3: Cross multiply
    39,048.12x = 53,886.51 × 21,142.98
  4. Step 4: Simplify right side
    39,048.12x = 1,139,321,403.20
  5. Step 5: Solve for x
    x = 1,139,321,403.20/39,048.12
  6. Step 6: Final answer
    x = 29,177.37

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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.