Home / 31,831.02-47,705.94-13,089.63

Finding the Fourth Proportional to 31,831.02, 47,705.94 and 13,089.63

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Solution

The fourth proportional to 31,831.02, 47,705.94 and 13,089.63 is: 19,617.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,831.02 : 47,705.94 = 13,089.63 : x
  2. Step 2: Convert to fraction form
    31,831.02/47,705.94 = 13,089.63/x
  3. Step 3: Cross multiply
    31,831.02x = 47,705.94 × 13,089.63
  4. Step 4: Simplify right side
    31,831.02x = 624,453,103.40
  5. Step 5: Solve for x
    x = 624,453,103.40/31,831.02
  6. Step 6: Final answer
    x = 19,617.75

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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.