Home / 30,031.42-45,053.52-8,971.24

Finding the Fourth Proportional to 30,031.42, 45,053.52 and 8,971.24

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Solution

The fourth proportional to 30,031.42, 45,053.52 and 8,971.24 is: 13,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,031.42 : 45,053.52 = 8,971.24 : x
  2. Step 2: Convert to fraction form
    30,031.42/45,053.52 = 8,971.24/x
  3. Step 3: Cross multiply
    30,031.42x = 45,053.52 × 8,971.24
  4. Step 4: Simplify right side
    30,031.42x = 404,185,940.76
  5. Step 5: Solve for x
    x = 404,185,940.76/30,031.42
  6. Step 6: Final answer
    x = 13,458.77

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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.