Home / 30,369.02-41,960.63-21,854.30

Finding the Fourth Proportional to 30,369.02, 41,960.63 and 21,854.30

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Solution

The fourth proportional to 30,369.02, 41,960.63 and 21,854.30 is: 30,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,369.02 : 41,960.63 = 21,854.30 : x
  2. Step 2: Convert to fraction form
    30,369.02/41,960.63 = 21,854.30/x
  3. Step 3: Cross multiply
    30,369.02x = 41,960.63 × 21,854.30
  4. Step 4: Simplify right side
    30,369.02x = 917,019,877.13
  5. Step 5: Solve for x
    x = 917,019,877.13/30,369.02
  6. Step 6: Final answer
    x = 30,195.90

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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.