Home / 39,065.60-58,636.80-19,366.40

Finding the Fourth Proportional to 39,065.60, 58,636.80 and 19,366.40

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Solution

The fourth proportional to 39,065.60, 58,636.80 and 19,366.40 is: 29,068.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,065.60 : 58,636.80 = 19,366.40 : x
  2. Step 2: Convert to fraction form
    39,065.60/58,636.80 = 19,366.40/x
  3. Step 3: Cross multiply
    39,065.60x = 58,636.80 × 19,366.40
  4. Step 4: Simplify right side
    39,065.60x = 1,135,583,723.52
  5. Step 5: Solve for x
    x = 1,135,583,723.52/39,065.60
  6. Step 6: Final answer
    x = 29,068.64

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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.