Home / 14,929.60-20,601.12-10,220.80

Finding the Fourth Proportional to 14,929.60, 20,601.12 and 10,220.80

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Solution

The fourth proportional to 14,929.60, 20,601.12 and 10,220.80 is: 14,103.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,929.60 : 20,601.12 = 10,220.80 : x
  2. Step 2: Convert to fraction form
    14,929.60/20,601.12 = 10,220.80/x
  3. Step 3: Cross multiply
    14,929.60x = 20,601.12 × 10,220.80
  4. Step 4: Simplify right side
    14,929.60x = 210,559,927.30
  5. Step 5: Solve for x
    x = 210,559,927.30/14,929.60
  6. Step 6: Final answer
    x = 14,103.52

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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.