Home / 21,548.48-29,737.08-12,116.96

Finding the Fourth Proportional to 21,548.48, 29,737.08 and 12,116.96

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Solution

The fourth proportional to 21,548.48, 29,737.08 and 12,116.96 is: 16,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.48 : 29,737.08 = 12,116.96 : x
  2. Step 2: Convert to fraction form
    21,548.48/29,737.08 = 12,116.96/x
  3. Step 3: Cross multiply
    21,548.48x = 29,737.08 × 12,116.96
  4. Step 4: Simplify right side
    21,548.48x = 360,323,008.88
  5. Step 5: Solve for x
    x = 360,323,008.88/21,548.48
  6. Step 6: Final answer
    x = 16,721.50

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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.