Home / 32,868.80-45,359.36-18,721.68

Finding the Fourth Proportional to 32,868.80, 45,359.36 and 18,721.68

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Solution

The fourth proportional to 32,868.80, 45,359.36 and 18,721.68 is: 25,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,868.80 : 45,359.36 = 18,721.68 : x
  2. Step 2: Convert to fraction form
    32,868.80/45,359.36 = 18,721.68/x
  3. Step 3: Cross multiply
    32,868.80x = 45,359.36 × 18,721.68
  4. Step 4: Simplify right side
    32,868.80x = 849,203,422.92
  5. Step 5: Solve for x
    x = 849,203,422.92/32,868.80
  6. Step 6: Final answer
    x = 25,836.16

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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.