Home / 30,322.08-41,820.30-21,822.84

Finding the Fourth Proportional to 30,322.08, 41,820.30 and 21,822.84

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Solution

The fourth proportional to 30,322.08, 41,820.30 and 21,822.84 is: 30,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,322.08 : 41,820.30 = 21,822.84 : x
  2. Step 2: Convert to fraction form
    30,322.08/41,820.30 = 21,822.84/x
  3. Step 3: Cross multiply
    30,322.08x = 41,820.30 × 21,822.84
  4. Step 4: Simplify right side
    30,322.08x = 912,637,715.65
  5. Step 5: Solve for x
    x = 912,637,715.65/30,322.08
  6. Step 6: Final answer
    x = 30,098.12

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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.