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Finding the Fourth Proportional to 19,300.40, 28,952.20 and 6,152.40

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Solution

The fourth proportional to 19,300.40, 28,952.20 and 6,152.40 is: 9,229.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,300.40 : 28,952.20 = 6,152.40 : x
  2. Step 2: Convert to fraction form
    19,300.40/28,952.20 = 6,152.40/x
  3. Step 3: Cross multiply
    19,300.40x = 28,952.20 × 6,152.40
  4. Step 4: Simplify right side
    19,300.40x = 178,125,515.28
  5. Step 5: Solve for x
    x = 178,125,515.28/19,300.40
  6. Step 6: Final answer
    x = 9,229.11

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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.