Home / 30,831.89-46,246.21-8,646.80

Finding the Fourth Proportional to 30,831.89, 46,246.21 and 8,646.80

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Solution

The fourth proportional to 30,831.89, 46,246.21 and 8,646.80 is: 12,969.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.89 : 46,246.21 = 8,646.80 : x
  2. Step 2: Convert to fraction form
    30,831.89/46,246.21 = 8,646.80/x
  3. Step 3: Cross multiply
    30,831.89x = 46,246.21 × 8,646.80
  4. Step 4: Simplify right side
    30,831.89x = 399,881,475.78
  5. Step 5: Solve for x
    x = 399,881,475.78/30,831.89
  6. Step 6: Final answer
    x = 12,969.74

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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.