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Finding the Fourth Proportional to 27,323.80, 40,985.70 and 8,606.20

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Solution

The fourth proportional to 27,323.80, 40,985.70 and 8,606.20 is: 12,909.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,323.80 : 40,985.70 = 8,606.20 : x
  2. Step 2: Convert to fraction form
    27,323.80/40,985.70 = 8,606.20/x
  3. Step 3: Cross multiply
    27,323.80x = 40,985.70 × 8,606.20
  4. Step 4: Simplify right side
    27,323.80x = 352,731,131.34
  5. Step 5: Solve for x
    x = 352,731,131.34/27,323.80
  6. Step 6: Final answer
    x = 12,909.30

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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.