Home / 21,248.70-29,326.23-13,295.58

Finding the Fourth Proportional to 21,248.70, 29,326.23 and 13,295.58

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Solution

The fourth proportional to 21,248.70, 29,326.23 and 13,295.58 is: 18,349.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.70 : 29,326.23 = 13,295.58 : x
  2. Step 2: Convert to fraction form
    21,248.70/29,326.23 = 13,295.58/x
  3. Step 3: Cross multiply
    21,248.70x = 29,326.23 × 13,295.58
  4. Step 4: Simplify right side
    21,248.70x = 389,909,237.06
  5. Step 5: Solve for x
    x = 389,909,237.06/21,248.70
  6. Step 6: Final answer
    x = 18,349.79

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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.