Home / 21,703.02-29,981.79-14,660.34

Finding the Fourth Proportional to 21,703.02, 29,981.79 and 14,660.34

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Solution

The fourth proportional to 21,703.02, 29,981.79 and 14,660.34 is: 20,252.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.02 : 29,981.79 = 14,660.34 : x
  2. Step 2: Convert to fraction form
    21,703.02/29,981.79 = 14,660.34/x
  3. Step 3: Cross multiply
    21,703.02x = 29,981.79 × 14,660.34
  4. Step 4: Simplify right side
    21,703.02x = 439,543,235.21
  5. Step 5: Solve for x
    x = 439,543,235.21/21,703.02
  6. Step 6: Final answer
    x = 20,252.63

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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.