Home / 30,104.19-45,156.29-10,381.20

Finding the Fourth Proportional to 30,104.19, 45,156.29 and 10,381.20

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Solution

The fourth proportional to 30,104.19, 45,156.29 and 10,381.20 is: 15,571.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,104.19 : 45,156.29 = 10,381.20 : x
  2. Step 2: Convert to fraction form
    30,104.19/45,156.29 = 10,381.20/x
  3. Step 3: Cross multiply
    30,104.19x = 45,156.29 × 10,381.20
  4. Step 4: Simplify right side
    30,104.19x = 468,776,425.84
  5. Step 5: Solve for x
    x = 468,776,425.84/30,104.19
  6. Step 6: Final answer
    x = 15,571.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.