Home / 30,142.27-45,193.47-13,479.37

Finding the Fourth Proportional to 30,142.27, 45,193.47 and 13,479.37

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Solution

The fourth proportional to 30,142.27, 45,193.47 and 13,479.37 is: 20,210.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,142.27 : 45,193.47 = 13,479.37 : x
  2. Step 2: Convert to fraction form
    30,142.27/45,193.47 = 13,479.37/x
  3. Step 3: Cross multiply
    30,142.27x = 45,193.47 × 13,479.37
  4. Step 4: Simplify right side
    30,142.27x = 609,179,503.71
  5. Step 5: Solve for x
    x = 609,179,503.71/30,142.27
  6. Step 6: Final answer
    x = 20,210.14

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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.