Home / 18,477.90-27,720.95-5,329.25

Finding the Fourth Proportional to 18,477.90, 27,720.95 and 5,329.25

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Solution

The fourth proportional to 18,477.90, 27,720.95 and 5,329.25 is: 7,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,477.90 : 27,720.95 = 5,329.25 : x
  2. Step 2: Convert to fraction form
    18,477.90/27,720.95 = 5,329.25/x
  3. Step 3: Cross multiply
    18,477.90x = 27,720.95 × 5,329.25
  4. Step 4: Simplify right side
    18,477.90x = 147,731,707.54
  5. Step 5: Solve for x
    x = 147,731,707.54/18,477.90
  6. Step 6: Final answer
    x = 7,995.05

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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.