Home / 39,488.47-54,507.06-31,436.93

Finding the Fourth Proportional to 39,488.47, 54,507.06 and 31,436.93

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Solution

The fourth proportional to 39,488.47, 54,507.06 and 31,436.93 is: 43,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,488.47 : 54,507.06 = 31,436.93 : x
  2. Step 2: Convert to fraction form
    39,488.47/54,507.06 = 31,436.93/x
  3. Step 3: Cross multiply
    39,488.47x = 54,507.06 × 31,436.93
  4. Step 4: Simplify right side
    39,488.47x = 1,713,534,765.99
  5. Step 5: Solve for x
    x = 1,713,534,765.99/39,488.47
  6. Step 6: Final answer
    x = 43,393.30

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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.