Home / 36,148.29-49,875.18-20,831.09

Finding the Fourth Proportional to 36,148.29, 49,875.18 and 20,831.09

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Solution

The fourth proportional to 36,148.29, 49,875.18 and 20,831.09 is: 28,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,148.29 : 49,875.18 = 20,831.09 : x
  2. Step 2: Convert to fraction form
    36,148.29/49,875.18 = 20,831.09/x
  3. Step 3: Cross multiply
    36,148.29x = 49,875.18 × 20,831.09
  4. Step 4: Simplify right side
    36,148.29x = 1,038,954,035.85
  5. Step 5: Solve for x
    x = 1,038,954,035.85/36,148.29
  6. Step 6: Final answer
    x = 28,741.45

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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.