Home / 21,346.29-29,458.76-11,913.03

Finding the Fourth Proportional to 21,346.29, 29,458.76 and 11,913.03

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Solution

The fourth proportional to 21,346.29, 29,458.76 and 11,913.03 is: 16,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,346.29 : 29,458.76 = 11,913.03 : x
  2. Step 2: Convert to fraction form
    21,346.29/29,458.76 = 11,913.03/x
  3. Step 3: Cross multiply
    21,346.29x = 29,458.76 × 11,913.03
  4. Step 4: Simplify right side
    21,346.29x = 350,943,032.08
  5. Step 5: Solve for x
    x = 350,943,032.08/21,346.29
  6. Step 6: Final answer
    x = 16,440.47

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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.