Home / 30,400.92-45,622.98-10,681.20

Finding the Fourth Proportional to 30,400.92, 45,622.98 and 10,681.20

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Solution

The fourth proportional to 30,400.92, 45,622.98 and 10,681.20 is: 16,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.92 : 45,622.98 = 10,681.20 : x
  2. Step 2: Convert to fraction form
    30,400.92/45,622.98 = 10,681.20/x
  3. Step 3: Cross multiply
    30,400.92x = 45,622.98 × 10,681.20
  4. Step 4: Simplify right side
    30,400.92x = 487,308,173.98
  5. Step 5: Solve for x
    x = 487,308,173.98/30,400.92
  6. Step 6: Final answer
    x = 16,029.39

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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.