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Finding the Fourth Proportional to 35,686.91, 53,534.01 and 12,310.31

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Solution

The fourth proportional to 35,686.91, 53,534.01 and 12,310.31 is: 18,466.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,686.91 : 53,534.01 = 12,310.31 : x
  2. Step 2: Convert to fraction form
    35,686.91/53,534.01 = 12,310.31/x
  3. Step 3: Cross multiply
    35,686.91x = 53,534.01 × 12,310.31
  4. Step 4: Simplify right side
    35,686.91x = 659,020,438.64
  5. Step 5: Solve for x
    x = 659,020,438.64/35,686.91
  6. Step 6: Final answer
    x = 18,466.73

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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.