Home / 21,159.48-29,200.84-11,599.36

Finding the Fourth Proportional to 21,159.48, 29,200.84 and 11,599.36

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Solution

The fourth proportional to 21,159.48, 29,200.84 and 11,599.36 is: 16,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.48 : 29,200.84 = 11,599.36 : x
  2. Step 2: Convert to fraction form
    21,159.48/29,200.84 = 11,599.36/x
  3. Step 3: Cross multiply
    21,159.48x = 29,200.84 × 11,599.36
  4. Step 4: Simplify right side
    21,159.48x = 338,711,055.46
  5. Step 5: Solve for x
    x = 338,711,055.46/21,159.48
  6. Step 6: Final answer
    x = 16,007.53

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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.