Home / 22,302.40-30,783.90-12,877.24

Finding the Fourth Proportional to 22,302.40, 30,783.90 and 12,877.24

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Solution

The fourth proportional to 22,302.40, 30,783.90 and 12,877.24 is: 17,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,302.40 : 30,783.90 = 12,877.24 : x
  2. Step 2: Convert to fraction form
    22,302.40/30,783.90 = 12,877.24/x
  3. Step 3: Cross multiply
    22,302.40x = 30,783.90 × 12,877.24
  4. Step 4: Simplify right side
    22,302.40x = 396,411,668.44
  5. Step 5: Solve for x
    x = 396,411,668.44/22,302.40
  6. Step 6: Final answer
    x = 17,774.40

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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.