Home / 21,569.08-29,768.28-13,074.60

Finding the Fourth Proportional to 21,569.08, 29,768.28 and 13,074.60

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Solution

The fourth proportional to 21,569.08, 29,768.28 and 13,074.60 is: 18,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.08 : 29,768.28 = 13,074.60 : x
  2. Step 2: Convert to fraction form
    21,569.08/29,768.28 = 13,074.60/x
  3. Step 3: Cross multiply
    21,569.08x = 29,768.28 × 13,074.60
  4. Step 4: Simplify right side
    21,569.08x = 389,208,353.69
  5. Step 5: Solve for x
    x = 389,208,353.69/21,569.08
  6. Step 6: Final answer
    x = 18,044.74

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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.