Home / 30,360.80-45,505.46-13,701.36

Finding the Fourth Proportional to 30,360.80, 45,505.46 and 13,701.36

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Solution

The fourth proportional to 30,360.80, 45,505.46 and 13,701.36 is: 20,535.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.80 : 45,505.46 = 13,701.36 : x
  2. Step 2: Convert to fraction form
    30,360.80/45,505.46 = 13,701.36/x
  3. Step 3: Cross multiply
    30,360.80x = 45,505.46 × 13,701.36
  4. Step 4: Simplify right side
    30,360.80x = 623,486,689.43
  5. Step 5: Solve for x
    x = 623,486,689.43/30,360.80
  6. Step 6: Final answer
    x = 20,535.91

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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.