Home / 27,120.02-37,443.03-18,619.40

Finding the Fourth Proportional to 27,120.02, 37,443.03 and 18,619.40

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Solution

The fourth proportional to 27,120.02, 37,443.03 and 18,619.40 is: 25,706.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,120.02 : 37,443.03 = 18,619.40 : x
  2. Step 2: Convert to fraction form
    27,120.02/37,443.03 = 18,619.40/x
  3. Step 3: Cross multiply
    27,120.02x = 37,443.03 × 18,619.40
  4. Step 4: Simplify right side
    27,120.02x = 697,166,776.57
  5. Step 5: Solve for x
    x = 697,166,776.57/27,120.02
  6. Step 6: Final answer
    x = 25,706.73

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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.