Home / 30,219.72-45,330.12-10,498.92

Finding the Fourth Proportional to 30,219.72, 45,330.12 and 10,498.92

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Solution

The fourth proportional to 30,219.72, 45,330.12 and 10,498.92 is: 15,748.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.72 : 45,330.12 = 10,498.92 : x
  2. Step 2: Convert to fraction form
    30,219.72/45,330.12 = 10,498.92/x
  3. Step 3: Cross multiply
    30,219.72x = 45,330.12 × 10,498.92
  4. Step 4: Simplify right side
    30,219.72x = 475,917,303.47
  5. Step 5: Solve for x
    x = 475,917,303.47/30,219.72
  6. Step 6: Final answer
    x = 15,748.57

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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.