Home / 19,784.18-27,302.51-12,230.31

Finding the Fourth Proportional to 19,784.18, 27,302.51 and 12,230.31

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Solution

The fourth proportional to 19,784.18, 27,302.51 and 12,230.31 is: 16,878.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.18 : 27,302.51 = 12,230.31 : x
  2. Step 2: Convert to fraction form
    19,784.18/27,302.51 = 12,230.31/x
  3. Step 3: Cross multiply
    19,784.18x = 27,302.51 × 12,230.31
  4. Step 4: Simplify right side
    19,784.18x = 333,918,099.93
  5. Step 5: Solve for x
    x = 333,918,099.93/19,784.18
  6. Step 6: Final answer
    x = 16,878.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.