Home / 39,636.78-59,464.32-13,340.88

Finding the Fourth Proportional to 39,636.78, 59,464.32 and 13,340.88

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Solution

The fourth proportional to 39,636.78, 59,464.32 and 13,340.88 is: 20,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,636.78 : 59,464.32 = 13,340.88 : x
  2. Step 2: Convert to fraction form
    39,636.78/59,464.32 = 13,340.88/x
  3. Step 3: Cross multiply
    39,636.78x = 59,464.32 × 13,340.88
  4. Step 4: Simplify right side
    39,636.78x = 793,306,357.40
  5. Step 5: Solve for x
    x = 793,306,357.40/39,636.78
  6. Step 6: Final answer
    x = 20,014.40

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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.