Home / 36,434.09-50,278.05-20,518.20

Finding the Fourth Proportional to 36,434.09, 50,278.05 and 20,518.20

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Solution

The fourth proportional to 36,434.09, 50,278.05 and 20,518.20 is: 28,314.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,434.09 : 50,278.05 = 20,518.20 : x
  2. Step 2: Convert to fraction form
    36,434.09/50,278.05 = 20,518.20/x
  3. Step 3: Cross multiply
    36,434.09x = 50,278.05 × 20,518.20
  4. Step 4: Simplify right side
    36,434.09x = 1,031,615,085.51
  5. Step 5: Solve for x
    x = 1,031,615,085.51/36,434.09
  6. Step 6: Final answer
    x = 28,314.55

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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.