Home / 36,431.16-50,278.08-20,518.74

Finding the Fourth Proportional to 36,431.16, 50,278.08 and 20,518.74

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Solution

The fourth proportional to 36,431.16, 50,278.08 and 20,518.74 is: 28,317.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,431.16 : 50,278.08 = 20,518.74 : x
  2. Step 2: Convert to fraction form
    36,431.16/50,278.08 = 20,518.74/x
  3. Step 3: Cross multiply
    36,431.16x = 50,278.08 × 20,518.74
  4. Step 4: Simplify right side
    36,431.16x = 1,031,642,851.22
  5. Step 5: Solve for x
    x = 1,031,642,851.22/36,431.16
  6. Step 6: Final answer
    x = 28,317.60

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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.