Home / 15,653.30-21,472.92-14,805.86

Finding the Fourth Proportional to 15,653.30, 21,472.92 and 14,805.86

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Solution

The fourth proportional to 15,653.30, 21,472.92 and 14,805.86 is: 20,310.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,653.30 : 21,472.92 = 14,805.86 : x
  2. Step 2: Convert to fraction form
    15,653.30/21,472.92 = 14,805.86/x
  3. Step 3: Cross multiply
    15,653.30x = 21,472.92 × 14,805.86
  4. Step 4: Simplify right side
    15,653.30x = 317,924,973.28
  5. Step 5: Solve for x
    x = 317,924,973.28/15,653.30
  6. Step 6: Final answer
    x = 20,310.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.