Home / 39,928.16-59,937.60-20,228.96

Finding the Fourth Proportional to 39,928.16, 59,937.60 and 20,228.96

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Solution

The fourth proportional to 39,928.16, 59,937.60 and 20,228.96 is: 30,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,928.16 : 59,937.60 = 20,228.96 : x
  2. Step 2: Convert to fraction form
    39,928.16/59,937.60 = 20,228.96/x
  3. Step 3: Cross multiply
    39,928.16x = 59,937.60 × 20,228.96
  4. Step 4: Simplify right side
    39,928.16x = 1,212,475,312.90
  5. Step 5: Solve for x
    x = 1,212,475,312.90/39,928.16
  6. Step 6: Final answer
    x = 30,366.42

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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.