Home / 30,300.60-41,807.70-18,361.20

Finding the Fourth Proportional to 30,300.60, 41,807.70 and 18,361.20

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Solution

The fourth proportional to 30,300.60, 41,807.70 and 18,361.20 is: 25,334.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,300.60 : 41,807.70 = 18,361.20 : x
  2. Step 2: Convert to fraction form
    30,300.60/41,807.70 = 18,361.20/x
  3. Step 3: Cross multiply
    30,300.60x = 41,807.70 × 18,361.20
  4. Step 4: Simplify right side
    30,300.60x = 767,639,541.24
  5. Step 5: Solve for x
    x = 767,639,541.24/30,300.60
  6. Step 6: Final answer
    x = 25,334.14

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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.