Home / 27,628.85-38,127.81-15,053.60

Finding the Fourth Proportional to 27,628.85, 38,127.81 and 15,053.60

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Solution

The fourth proportional to 27,628.85, 38,127.81 and 15,053.60 is: 20,773.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.85 : 38,127.81 = 15,053.60 : x
  2. Step 2: Convert to fraction form
    27,628.85/38,127.81 = 15,053.60/x
  3. Step 3: Cross multiply
    27,628.85x = 38,127.81 × 15,053.60
  4. Step 4: Simplify right side
    27,628.85x = 573,960,534.71
  5. Step 5: Solve for x
    x = 573,960,534.71/27,628.85
  6. Step 6: Final answer
    x = 20,773.96

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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.