Home / 38,731.77-53,433.27-28,683.72

Finding the Fourth Proportional to 38,731.77, 53,433.27 and 28,683.72

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Solution

The fourth proportional to 38,731.77, 53,433.27 and 28,683.72 is: 39,571.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,731.77 : 53,433.27 = 28,683.72 : x
  2. Step 2: Convert to fraction form
    38,731.77/53,433.27 = 28,683.72/x
  3. Step 3: Cross multiply
    38,731.77x = 53,433.27 × 28,683.72
  4. Step 4: Simplify right side
    38,731.77x = 1,532,664,955.36
  5. Step 5: Solve for x
    x = 1,532,664,955.36/38,731.77
  6. Step 6: Final answer
    x = 39,571.26

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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.