Home / 20,528.15-30,736.61-10,646.70

Finding the Fourth Proportional to 20,528.15, 30,736.61 and 10,646.70

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Solution

The fourth proportional to 20,528.15, 30,736.61 and 10,646.70 is: 15,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.15 : 30,736.61 = 10,646.70 : x
  2. Step 2: Convert to fraction form
    20,528.15/30,736.61 = 10,646.70/x
  3. Step 3: Cross multiply
    20,528.15x = 30,736.61 × 10,646.70
  4. Step 4: Simplify right side
    20,528.15x = 327,243,465.69
  5. Step 5: Solve for x
    x = 327,243,465.69/20,528.15
  6. Step 6: Final answer
    x = 15,941.21

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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.