Home / 27,127.90-37,411.52-18,615

Finding the Fourth Proportional to 27,127.90, 37,411.52 and 18,615

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Solution

The fourth proportional to 27,127.90, 37,411.52 and 18,615 is: 25,671.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,127.90 : 37,411.52 = 18,615 : x
  2. Step 2: Convert to fraction form
    27,127.90/37,411.52 = 18,615/x
  3. Step 3: Cross multiply
    27,127.90x = 37,411.52 × 18,615
  4. Step 4: Simplify right side
    27,127.90x = 696,415,444.80
  5. Step 5: Solve for x
    x = 696,415,444.80/27,127.90
  6. Step 6: Final answer
    x = 25,671.56

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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.