Home / 21,670.91-29,885.85-16,635.35

Finding the Fourth Proportional to 21,670.91, 29,885.85 and 16,635.35

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Solution

The fourth proportional to 21,670.91, 29,885.85 and 16,635.35 is: 22,941.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.91 : 29,885.85 = 16,635.35 : x
  2. Step 2: Convert to fraction form
    21,670.91/29,885.85 = 16,635.35/x
  3. Step 3: Cross multiply
    21,670.91x = 29,885.85 × 16,635.35
  4. Step 4: Simplify right side
    21,670.91x = 497,161,574.80
  5. Step 5: Solve for x
    x = 497,161,574.80/21,670.91
  6. Step 6: Final answer
    x = 22,941.43

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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.