Home / 19,168.95-28,758.30-7,322.70

Finding the Fourth Proportional to 19,168.95, 28,758.30 and 7,322.70

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Solution

The fourth proportional to 19,168.95, 28,758.30 and 7,322.70 is: 10,985.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.95 : 28,758.30 = 7,322.70 : x
  2. Step 2: Convert to fraction form
    19,168.95/28,758.30 = 7,322.70/x
  3. Step 3: Cross multiply
    19,168.95x = 28,758.30 × 7,322.70
  4. Step 4: Simplify right side
    19,168.95x = 210,588,403.41
  5. Step 5: Solve for x
    x = 210,588,403.41/19,168.95
  6. Step 6: Final answer
    x = 10,985.91

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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.