Home / 30,172.86-45,284.18-15,184.22

Finding the Fourth Proportional to 30,172.86, 45,284.18 and 15,184.22

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Solution

The fourth proportional to 30,172.86, 45,284.18 and 15,184.22 is: 22,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,172.86 : 45,284.18 = 15,184.22 : x
  2. Step 2: Convert to fraction form
    30,172.86/45,284.18 = 15,184.22/x
  3. Step 3: Cross multiply
    30,172.86x = 45,284.18 × 15,184.22
  4. Step 4: Simplify right side
    30,172.86x = 687,604,649.30
  5. Step 5: Solve for x
    x = 687,604,649.30/30,172.86
  6. Step 6: Final answer
    x = 22,788.85

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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.