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Finding the Fourth Proportional to 35,560.80, 53,343.80 and 12,187.04

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Solution

The fourth proportional to 35,560.80, 53,343.80 and 12,187.04 is: 18,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,560.80 : 53,343.80 = 12,187.04 : x
  2. Step 2: Convert to fraction form
    35,560.80/53,343.80 = 12,187.04/x
  3. Step 3: Cross multiply
    35,560.80x = 53,343.80 × 12,187.04
  4. Step 4: Simplify right side
    35,560.80x = 650,103,024.35
  5. Step 5: Solve for x
    x = 650,103,024.35/35,560.80
  6. Step 6: Final answer
    x = 18,281.45

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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.