Home / 21,557.00-29,746.35-11,995.36

Finding the Fourth Proportional to 21,557.00, 29,746.35 and 11,995.36

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Solution

The fourth proportional to 21,557.00, 29,746.35 and 11,995.36 is: 16,552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.00 : 29,746.35 = 11,995.36 : x
  2. Step 2: Convert to fraction form
    21,557.00/29,746.35 = 11,995.36/x
  3. Step 3: Cross multiply
    21,557.00x = 29,746.35 × 11,995.36
  4. Step 4: Simplify right side
    21,557.00x = 356,818,102.57
  5. Step 5: Solve for x
    x = 356,818,102.57/21,557.00
  6. Step 6: Final answer
    x = 16,552.31

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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.