Home / 40,911.66-61,368.25-12,831.09

Finding the Fourth Proportional to 40,911.66, 61,368.25 and 12,831.09

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Solution

The fourth proportional to 40,911.66, 61,368.25 and 12,831.09 is: 19,246.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,911.66 : 61,368.25 = 12,831.09 : x
  2. Step 2: Convert to fraction form
    40,911.66/61,368.25 = 12,831.09/x
  3. Step 3: Cross multiply
    40,911.66x = 61,368.25 × 12,831.09
  4. Step 4: Simplify right side
    40,911.66x = 787,421,538.89
  5. Step 5: Solve for x
    x = 787,421,538.89/40,911.66
  6. Step 6: Final answer
    x = 19,246.87

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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.