Home / 21,484.65-29,663.27-16,439.86

Finding the Fourth Proportional to 21,484.65, 29,663.27 and 16,439.86

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Solution

The fourth proportional to 21,484.65, 29,663.27 and 16,439.86 is: 22,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484.65 : 29,663.27 = 16,439.86 : x
  2. Step 2: Convert to fraction form
    21,484.65/29,663.27 = 16,439.86/x
  3. Step 3: Cross multiply
    21,484.65x = 29,663.27 × 16,439.86
  4. Step 4: Simplify right side
    21,484.65x = 487,660,005.94
  5. Step 5: Solve for x
    x = 487,660,005.94/21,484.65
  6. Step 6: Final answer
    x = 22,698.07

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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.