Home / 27,421.20-37,840.77-15,483.69

Finding the Fourth Proportional to 27,421.20, 37,840.77 and 15,483.69

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Solution

The fourth proportional to 27,421.20, 37,840.77 and 15,483.69 is: 21,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,421.20 : 37,840.77 = 15,483.69 : x
  2. Step 2: Convert to fraction form
    27,421.20/37,840.77 = 15,483.69/x
  3. Step 3: Cross multiply
    27,421.20x = 37,840.77 × 15,483.69
  4. Step 4: Simplify right side
    27,421.20x = 585,914,752.04
  5. Step 5: Solve for x
    x = 585,914,752.04/27,421.20
  6. Step 6: Final answer
    x = 21,367.22

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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.