Home / 36,431.79-50,276.70-20,300.18

Finding the Fourth Proportional to 36,431.79, 50,276.70 and 20,300.18

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Solution

The fourth proportional to 36,431.79, 50,276.70 and 20,300.18 is: 28,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.79 : 50,276.70 = 20,300.18 : x
  2. Step 2: Convert to fraction form
    36,431.79/50,276.70 = 20,300.18/x
  3. Step 3: Cross multiply
    36,431.79x = 50,276.70 × 20,300.18
  4. Step 4: Simplify right side
    36,431.79x = 1,020,625,808.42
  5. Step 5: Solve for x
    x = 1,020,625,808.42/36,431.79
  6. Step 6: Final answer
    x = 28,014.70

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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.