Home / 39,872.91-59,807.21-12,168.75

Finding the Fourth Proportional to 39,872.91, 59,807.21 and 12,168.75

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Solution

The fourth proportional to 39,872.91, 59,807.21 and 12,168.75 is: 18,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,872.91 : 59,807.21 = 12,168.75 : x
  2. Step 2: Convert to fraction form
    39,872.91/59,807.21 = 12,168.75/x
  3. Step 3: Cross multiply
    39,872.91x = 59,807.21 × 12,168.75
  4. Step 4: Simplify right side
    39,872.91x = 727,778,925.84
  5. Step 5: Solve for x
    x = 727,778,925.84/39,872.91
  6. Step 6: Final answer
    x = 18,252.47

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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.