Home / 31,778.49-47,683.28-12,802.33

Finding the Fourth Proportional to 31,778.49, 47,683.28 and 12,802.33

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Solution

The fourth proportional to 31,778.49, 47,683.28 and 12,802.33 is: 19,209.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778.49 : 47,683.28 = 12,802.33 : x
  2. Step 2: Convert to fraction form
    31,778.49/47,683.28 = 12,802.33/x
  3. Step 3: Cross multiply
    31,778.49x = 47,683.28 × 12,802.33
  4. Step 4: Simplify right side
    31,778.49x = 610,457,345.29
  5. Step 5: Solve for x
    x = 610,457,345.29/31,778.49
  6. Step 6: Final answer
    x = 19,209.77

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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.