Home / 30,053.28-45,061.20-13,412.64

Finding the Fourth Proportional to 30,053.28, 45,061.20 and 13,412.64

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Solution

The fourth proportional to 30,053.28, 45,061.20 and 13,412.64 is: 20,110.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,053.28 : 45,061.20 = 13,412.64 : x
  2. Step 2: Convert to fraction form
    30,053.28/45,061.20 = 13,412.64/x
  3. Step 3: Cross multiply
    30,053.28x = 45,061.20 × 13,412.64
  4. Step 4: Simplify right side
    30,053.28x = 604,389,653.57
  5. Step 5: Solve for x
    x = 604,389,653.57/30,053.28
  6. Step 6: Final answer
    x = 20,110.61

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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.