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Finding the Fourth Proportional to 19,224.32, 28,823.04 and 8,830.40

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Solution

The fourth proportional to 19,224.32, 28,823.04 and 8,830.40 is: 13,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.32 : 28,823.04 = 8,830.40 : x
  2. Step 2: Convert to fraction form
    19,224.32/28,823.04 = 8,830.40/x
  3. Step 3: Cross multiply
    19,224.32x = 28,823.04 × 8,830.40
  4. Step 4: Simplify right side
    19,224.32x = 254,518,972.42
  5. Step 5: Solve for x
    x = 254,518,972.42/19,224.32
  6. Step 6: Final answer
    x = 13,239.43

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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.