Home / 21,664.32-32,484.24-14,272.80

Finding the Fourth Proportional to 21,664.32, 32,484.24 and 14,272.80

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Solution

The fourth proportional to 21,664.32, 32,484.24 and 14,272.80 is: 21,401.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.32 : 32,484.24 = 14,272.80 : x
  2. Step 2: Convert to fraction form
    21,664.32/32,484.24 = 14,272.80/x
  3. Step 3: Cross multiply
    21,664.32x = 32,484.24 × 14,272.80
  4. Step 4: Simplify right side
    21,664.32x = 463,641,060.67
  5. Step 5: Solve for x
    x = 463,641,060.67/21,664.32
  6. Step 6: Final answer
    x = 21,401.14

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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.