Home / 39,687.20-59,530.80-30,928.70

Finding the Fourth Proportional to 39,687.20, 59,530.80 and 30,928.70

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Solution

The fourth proportional to 39,687.20, 59,530.80 and 30,928.70 is: 46,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,687.20 : 59,530.80 = 30,928.70 : x
  2. Step 2: Convert to fraction form
    39,687.20/59,530.80 = 30,928.70/x
  3. Step 3: Cross multiply
    39,687.20x = 59,530.80 × 30,928.70
  4. Step 4: Simplify right side
    39,687.20x = 1,841,210,253.96
  5. Step 5: Solve for x
    x = 1,841,210,253.96/39,687.20
  6. Step 6: Final answer
    x = 46,393.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.