Home / 21,097.98-31,619.28-15,525.23

Finding the Fourth Proportional to 21,097.98, 31,619.28 and 15,525.23

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Solution

The fourth proportional to 21,097.98, 31,619.28 and 15,525.23 is: 23,267.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097.98 : 31,619.28 = 15,525.23 : x
  2. Step 2: Convert to fraction form
    21,097.98/31,619.28 = 15,525.23/x
  3. Step 3: Cross multiply
    21,097.98x = 31,619.28 × 15,525.23
  4. Step 4: Simplify right side
    21,097.98x = 490,896,594.43
  5. Step 5: Solve for x
    x = 490,896,594.43/21,097.98
  6. Step 6: Final answer
    x = 23,267.47

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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.