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Finding the Fourth Proportional to 63,668.40, 95,478.30 and 19,280.40

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Solution

The fourth proportional to 63,668.40, 95,478.30 and 19,280.40 is: 28,913.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,668.40 : 95,478.30 = 19,280.40 : x
  2. Step 2: Convert to fraction form
    63,668.40/95,478.30 = 19,280.40/x
  3. Step 3: Cross multiply
    63,668.40x = 95,478.30 × 19,280.40
  4. Step 4: Simplify right side
    63,668.40x = 1,840,859,815.32
  5. Step 5: Solve for x
    x = 1,840,859,815.32/63,668.40
  6. Step 6: Final answer
    x = 28,913.24

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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.