Home / 45,284.01-67,904.16-18,981.69

Finding the Fourth Proportional to 45,284.01, 67,904.16 and 18,981.69

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Solution

The fourth proportional to 45,284.01, 67,904.16 and 18,981.69 is: 28,463.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,284.01 : 67,904.16 = 18,981.69 : x
  2. Step 2: Convert to fraction form
    45,284.01/67,904.16 = 18,981.69/x
  3. Step 3: Cross multiply
    45,284.01x = 67,904.16 × 18,981.69
  4. Step 4: Simplify right side
    45,284.01x = 1,288,935,714.83
  5. Step 5: Solve for x
    x = 1,288,935,714.83/45,284.01
  6. Step 6: Final answer
    x = 28,463.37

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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.