Home / 32,721.40-45,154.28-19,995.87

Finding the Fourth Proportional to 32,721.40, 45,154.28 and 19,995.87

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Solution

The fourth proportional to 32,721.40, 45,154.28 and 19,995.87 is: 27,593.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,721.40 : 45,154.28 = 19,995.87 : x
  2. Step 2: Convert to fraction form
    32,721.40/45,154.28 = 19,995.87/x
  3. Step 3: Cross multiply
    32,721.40x = 45,154.28 × 19,995.87
  4. Step 4: Simplify right side
    32,721.40x = 902,899,087.83
  5. Step 5: Solve for x
    x = 902,899,087.83/32,721.40
  6. Step 6: Final answer
    x = 27,593.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.