Home / 21,529.56-29,710.80-12,098.16

Finding the Fourth Proportional to 21,529.56, 29,710.80 and 12,098.16

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Solution

The fourth proportional to 21,529.56, 29,710.80 and 12,098.16 is: 16,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.56 : 29,710.80 = 12,098.16 : x
  2. Step 2: Convert to fraction form
    21,529.56/29,710.80 = 12,098.16/x
  3. Step 3: Cross multiply
    21,529.56x = 29,710.80 × 12,098.16
  4. Step 4: Simplify right side
    21,529.56x = 359,446,012.13
  5. Step 5: Solve for x
    x = 359,446,012.13/21,529.56
  6. Step 6: Final answer
    x = 16,695.46

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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.