Home / 30,554.13-45,831.20-12,086.13

Finding the Fourth Proportional to 30,554.13, 45,831.20 and 12,086.13

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Solution

The fourth proportional to 30,554.13, 45,831.20 and 12,086.13 is: 18,129.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,554.13 : 45,831.20 = 12,086.13 : x
  2. Step 2: Convert to fraction form
    30,554.13/45,831.20 = 12,086.13/x
  3. Step 3: Cross multiply
    30,554.13x = 45,831.20 × 12,086.13
  4. Step 4: Simplify right side
    30,554.13x = 553,921,841.26
  5. Step 5: Solve for x
    x = 553,921,841.26/30,554.13
  6. Step 6: Final answer
    x = 18,129.20

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Similar ratio
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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.