Home / 19,172.01-28,799.95-13,660.77

Finding the Fourth Proportional to 19,172.01, 28,799.95 and 13,660.77

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Solution

The fourth proportional to 19,172.01, 28,799.95 and 13,660.77 is: 20,521.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.01 : 28,799.95 = 13,660.77 : x
  2. Step 2: Convert to fraction form
    19,172.01/28,799.95 = 13,660.77/x
  3. Step 3: Cross multiply
    19,172.01x = 28,799.95 × 13,660.77
  4. Step 4: Simplify right side
    19,172.01x = 393,429,492.96
  5. Step 5: Solve for x
    x = 393,429,492.96/19,172.01
  6. Step 6: Final answer
    x = 20,521.04

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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.