Home / 27,477.63-37,919.90-15,542.80

Finding the Fourth Proportional to 27,477.63, 37,919.90 and 15,542.80

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Solution

The fourth proportional to 27,477.63, 37,919.90 and 15,542.80 is: 21,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,477.63 : 37,919.90 = 15,542.80 : x
  2. Step 2: Convert to fraction form
    27,477.63/37,919.90 = 15,542.80/x
  3. Step 3: Cross multiply
    27,477.63x = 37,919.90 × 15,542.80
  4. Step 4: Simplify right side
    27,477.63x = 589,381,421.72
  5. Step 5: Solve for x
    x = 589,381,421.72/27,477.63
  6. Step 6: Final answer
    x = 21,449.50

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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.