Home / 40,840.16-61,268.74-12,759.08

Finding the Fourth Proportional to 40,840.16, 61,268.74 and 12,759.08

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Solution

The fourth proportional to 40,840.16, 61,268.74 and 12,759.08 is: 19,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,840.16 : 61,268.74 = 12,759.08 : x
  2. Step 2: Convert to fraction form
    40,840.16/61,268.74 = 12,759.08/x
  3. Step 3: Cross multiply
    40,840.16x = 61,268.74 × 12,759.08
  4. Step 4: Simplify right side
    40,840.16x = 781,732,416.92
  5. Step 5: Solve for x
    x = 781,732,416.92/40,840.16
  6. Step 6: Final answer
    x = 19,141.27

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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.