Home / 30,233.13-41,677.77-21,130.23

Finding the Fourth Proportional to 30,233.13, 41,677.77 and 21,130.23

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Solution

The fourth proportional to 30,233.13, 41,677.77 and 21,130.23 is: 29,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233.13 : 41,677.77 = 21,130.23 : x
  2. Step 2: Convert to fraction form
    30,233.13/41,677.77 = 21,130.23/x
  3. Step 3: Cross multiply
    30,233.13x = 41,677.77 × 21,130.23
  4. Step 4: Simplify right side
    30,233.13x = 880,660,865.99
  5. Step 5: Solve for x
    x = 880,660,865.99/30,233.13
  6. Step 6: Final answer
    x = 29,129.00

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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.