Home / 30,306.18-41,824.21-18,210.36

Finding the Fourth Proportional to 30,306.18, 41,824.21 and 18,210.36

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Solution

The fourth proportional to 30,306.18, 41,824.21 and 18,210.36 is: 25,131.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.18 : 41,824.21 = 18,210.36 : x
  2. Step 2: Convert to fraction form
    30,306.18/41,824.21 = 18,210.36/x
  3. Step 3: Cross multiply
    30,306.18x = 41,824.21 × 18,210.36
  4. Step 4: Simplify right side
    30,306.18x = 761,634,062.48
  5. Step 5: Solve for x
    x = 761,634,062.48/30,306.18
  6. Step 6: Final answer
    x = 25,131.31

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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.