Home / 26,199.84-36,191.16-20,931.60

Finding the Fourth Proportional to 26,199.84, 36,191.16 and 20,931.60

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Solution

The fourth proportional to 26,199.84, 36,191.16 and 20,931.60 is: 28,913.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,199.84 : 36,191.16 = 20,931.60 : x
  2. Step 2: Convert to fraction form
    26,199.84/36,191.16 = 20,931.60/x
  3. Step 3: Cross multiply
    26,199.84x = 36,191.16 × 20,931.60
  4. Step 4: Simplify right side
    26,199.84x = 757,538,884.66
  5. Step 5: Solve for x
    x = 757,538,884.66/26,199.84
  6. Step 6: Final answer
    x = 28,913.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.