Home / 19,440.72-28,927.68-19,375.12

Finding the Fourth Proportional to 19,440.72, 28,927.68 and 19,375.12

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Solution

The fourth proportional to 19,440.72, 28,927.68 and 19,375.12 is: 28,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,440.72 : 28,927.68 = 19,375.12 : x
  2. Step 2: Convert to fraction form
    19,440.72/28,927.68 = 19,375.12/x
  3. Step 3: Cross multiply
    19,440.72x = 28,927.68 × 19,375.12
  4. Step 4: Simplify right side
    19,440.72x = 560,477,271.32
  5. Step 5: Solve for x
    x = 560,477,271.32/19,440.72
  6. Step 6: Final answer
    x = 28,830.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.