Home / 39,643.20-59,464.80-13,345.74

Finding the Fourth Proportional to 39,643.20, 59,464.80 and 13,345.74

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Solution

The fourth proportional to 39,643.20, 59,464.80 and 13,345.74 is: 20,018.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,643.20 : 59,464.80 = 13,345.74 : x
  2. Step 2: Convert to fraction form
    39,643.20/59,464.80 = 13,345.74/x
  3. Step 3: Cross multiply
    39,643.20x = 59,464.80 × 13,345.74
  4. Step 4: Simplify right side
    39,643.20x = 793,601,759.95
  5. Step 5: Solve for x
    x = 793,601,759.95/39,643.20
  6. Step 6: Final answer
    x = 20,018.61

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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.