Home / 21,867.76-32,746.80-13,513.44

Finding the Fourth Proportional to 21,867.76, 32,746.80 and 13,513.44

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Solution

The fourth proportional to 21,867.76, 32,746.80 and 13,513.44 is: 20,236.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.76 : 32,746.80 = 13,513.44 : x
  2. Step 2: Convert to fraction form
    21,867.76/32,746.80 = 13,513.44/x
  3. Step 3: Cross multiply
    21,867.76x = 32,746.80 × 13,513.44
  4. Step 4: Simplify right side
    21,867.76x = 442,521,916.99
  5. Step 5: Solve for x
    x = 442,521,916.99/21,867.76
  6. Step 6: Final answer
    x = 20,236.27

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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.