Home / 30,260.52-45,390.78-13,617.44

Finding the Fourth Proportional to 30,260.52, 45,390.78 and 13,617.44

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Solution

The fourth proportional to 30,260.52, 45,390.78 and 13,617.44 is: 20,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.52 : 45,390.78 = 13,617.44 : x
  2. Step 2: Convert to fraction form
    30,260.52/45,390.78 = 13,617.44/x
  3. Step 3: Cross multiply
    30,260.52x = 45,390.78 × 13,617.44
  4. Step 4: Simplify right side
    30,260.52x = 618,106,223.20
  5. Step 5: Solve for x
    x = 618,106,223.20/30,260.52
  6. Step 6: Final answer
    x = 20,426.16

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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.