Home / 37,686.86-52,012-21,555.68

Finding the Fourth Proportional to 37,686.86, 52,012 and 21,555.68

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Solution

The fourth proportional to 37,686.86, 52,012 and 21,555.68 is: 29,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,686.86 : 52,012 = 21,555.68 : x
  2. Step 2: Convert to fraction form
    37,686.86/52,012 = 21,555.68/x
  3. Step 3: Cross multiply
    37,686.86x = 52,012 × 21,555.68
  4. Step 4: Simplify right side
    37,686.86x = 1,121,154,028.16
  5. Step 5: Solve for x
    x = 1,121,154,028.16/37,686.86
  6. Step 6: Final answer
    x = 29,749.20

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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.