Home / 21,454.98-32,177.34-7,415.51

Finding the Fourth Proportional to 21,454.98, 32,177.34 and 7,415.51

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Solution

The fourth proportional to 21,454.98, 32,177.34 and 7,415.51 is: 11,121.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.98 : 32,177.34 = 7,415.51 : x
  2. Step 2: Convert to fraction form
    21,454.98/32,177.34 = 7,415.51/x
  3. Step 3: Cross multiply
    21,454.98x = 32,177.34 × 7,415.51
  4. Step 4: Simplify right side
    21,454.98x = 238,611,225.66
  5. Step 5: Solve for x
    x = 238,611,225.66/21,454.98
  6. Step 6: Final answer
    x = 11,121.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.