Home / 15,478.90-23,228.37-5,617.35

Finding the Fourth Proportional to 15,478.90, 23,228.37 and 5,617.35

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Solution

The fourth proportional to 15,478.90, 23,228.37 and 5,617.35 is: 8,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.90 : 23,228.37 = 5,617.35 : x
  2. Step 2: Convert to fraction form
    15,478.90/23,228.37 = 5,617.35/x
  3. Step 3: Cross multiply
    15,478.90x = 23,228.37 × 5,617.35
  4. Step 4: Simplify right side
    15,478.90x = 130,481,884.22
  5. Step 5: Solve for x
    x = 130,481,884.22/15,478.90
  6. Step 6: Final answer
    x = 8,429.66

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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.