Home / 30,081.74-45,121.59-14,298.12

Finding the Fourth Proportional to 30,081.74, 45,121.59 and 14,298.12

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Solution

The fourth proportional to 30,081.74, 45,121.59 and 14,298.12 is: 21,446.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,081.74 : 45,121.59 = 14,298.12 : x
  2. Step 2: Convert to fraction form
    30,081.74/45,121.59 = 14,298.12/x
  3. Step 3: Cross multiply
    30,081.74x = 45,121.59 × 14,298.12
  4. Step 4: Simplify right side
    30,081.74x = 645,153,908.41
  5. Step 5: Solve for x
    x = 645,153,908.41/30,081.74
  6. Step 6: Final answer
    x = 21,446.70

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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.