Home / 36,430.09-50,274.50-20,515.10

Finding the Fourth Proportional to 36,430.09, 50,274.50 and 20,515.10

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Solution

The fourth proportional to 36,430.09, 50,274.50 and 20,515.10 is: 28,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,430.09 : 50,274.50 = 20,515.10 : x
  2. Step 2: Convert to fraction form
    36,430.09/50,274.50 = 20,515.10/x
  3. Step 3: Cross multiply
    36,430.09x = 50,274.50 × 20,515.10
  4. Step 4: Simplify right side
    36,430.09x = 1,031,386,041.00
  5. Step 5: Solve for x
    x = 1,031,386,041.00/36,430.09
  6. Step 6: Final answer
    x = 28,311.38

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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.