Home / 18,270.34-27,405.51-5,790.40

Finding the Fourth Proportional to 18,270.34, 27,405.51 and 5,790.40

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Solution

The fourth proportional to 18,270.34, 27,405.51 and 5,790.40 is: 8,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.34 : 27,405.51 = 5,790.40 : x
  2. Step 2: Convert to fraction form
    18,270.34/27,405.51 = 5,790.40/x
  3. Step 3: Cross multiply
    18,270.34x = 27,405.51 × 5,790.40
  4. Step 4: Simplify right side
    18,270.34x = 158,688,865.10
  5. Step 5: Solve for x
    x = 158,688,865.10/18,270.34
  6. Step 6: Final answer
    x = 8,685.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.