Home / 39,530.80-54,572.34-30,558.04

Finding the Fourth Proportional to 39,530.80, 54,572.34 and 30,558.04

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Solution

The fourth proportional to 39,530.80, 54,572.34 and 30,558.04 is: 42,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,530.80 : 54,572.34 = 30,558.04 : x
  2. Step 2: Convert to fraction form
    39,530.80/54,572.34 = 30,558.04/x
  3. Step 3: Cross multiply
    39,530.80x = 54,572.34 × 30,558.04
  4. Step 4: Simplify right side
    39,530.80x = 1,667,623,748.61
  5. Step 5: Solve for x
    x = 1,667,623,748.61/39,530.80
  6. Step 6: Final answer
    x = 42,185.43

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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.