Home / 27,276.96-37,643.28-15,340.80

Finding the Fourth Proportional to 27,276.96, 37,643.28 and 15,340.80

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Solution

The fourth proportional to 27,276.96, 37,643.28 and 15,340.80 is: 21,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,276.96 : 37,643.28 = 15,340.80 : x
  2. Step 2: Convert to fraction form
    27,276.96/37,643.28 = 15,340.80/x
  3. Step 3: Cross multiply
    27,276.96x = 37,643.28 × 15,340.80
  4. Step 4: Simplify right side
    27,276.96x = 577,478,029.82
  5. Step 5: Solve for x
    x = 577,478,029.82/27,276.96
  6. Step 6: Final answer
    x = 21,170.91

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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.