Home / 14,705.30-21,997.20-13,407.68

Finding the Fourth Proportional to 14,705.30, 21,997.20 and 13,407.68

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Solution

The fourth proportional to 14,705.30, 21,997.20 and 13,407.68 is: 20,056.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,705.30 : 21,997.20 = 13,407.68 : x
  2. Step 2: Convert to fraction form
    14,705.30/21,997.20 = 13,407.68/x
  3. Step 3: Cross multiply
    14,705.30x = 21,997.20 × 13,407.68
  4. Step 4: Simplify right side
    14,705.30x = 294,931,418.50
  5. Step 5: Solve for x
    x = 294,931,418.50/14,705.30
  6. Step 6: Final answer
    x = 20,056.13

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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.