Home / 35,686.05-53,532.71-12,309.45

Finding the Fourth Proportional to 35,686.05, 53,532.71 and 12,309.45

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Solution

The fourth proportional to 35,686.05, 53,532.71 and 12,309.45 is: 18,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,686.05 : 53,532.71 = 12,309.45 : x
  2. Step 2: Convert to fraction form
    35,686.05/53,532.71 = 12,309.45/x
  3. Step 3: Cross multiply
    35,686.05x = 53,532.71 × 12,309.45
  4. Step 4: Simplify right side
    35,686.05x = 658,958,217.11
  5. Step 5: Solve for x
    x = 658,958,217.11/35,686.05
  6. Step 6: Final answer
    x = 18,465.43

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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.