Home / 45,031.91-67,489.45-18,346.87

Finding the Fourth Proportional to 45,031.91, 67,489.45 and 18,346.87

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Solution

The fourth proportional to 45,031.91, 67,489.45 and 18,346.87 is: 27,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,031.91 : 67,489.45 = 18,346.87 : x
  2. Step 2: Convert to fraction form
    45,031.91/67,489.45 = 18,346.87/x
  3. Step 3: Cross multiply
    45,031.91x = 67,489.45 × 18,346.87
  4. Step 4: Simplify right side
    45,031.91x = 1,238,219,950.93
  5. Step 5: Solve for x
    x = 1,238,219,950.93/45,031.91
  6. Step 6: Final answer
    x = 27,496.50

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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.