Home / 21,548.98-29,737.77-12,117.46

Finding the Fourth Proportional to 21,548.98, 29,737.77 and 12,117.46

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Solution

The fourth proportional to 21,548.98, 29,737.77 and 12,117.46 is: 16,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.98 : 29,737.77 = 12,117.46 : x
  2. Step 2: Convert to fraction form
    21,548.98/29,737.77 = 12,117.46/x
  3. Step 3: Cross multiply
    21,548.98x = 29,737.77 × 12,117.46
  4. Step 4: Simplify right side
    21,548.98x = 360,346,238.46
  5. Step 5: Solve for x
    x = 360,346,238.46/21,548.98
  6. Step 6: Final answer
    x = 16,722.19

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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.