Home / 45,322.80-67,988.81-21,626.29

Finding the Fourth Proportional to 45,322.80, 67,988.81 and 21,626.29

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Solution

The fourth proportional to 45,322.80, 67,988.81 and 21,626.29 is: 32,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,322.80 : 67,988.81 = 21,626.29 : x
  2. Step 2: Convert to fraction form
    45,322.80/67,988.81 = 21,626.29/x
  3. Step 3: Cross multiply
    45,322.80x = 67,988.81 × 21,626.29
  4. Step 4: Simplify right side
    45,322.80x = 1,470,345,721.81
  5. Step 5: Solve for x
    x = 1,470,345,721.81/45,322.80
  6. Step 6: Final answer
    x = 32,441.63

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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.