Home / 38,728.98-53,403.28-26,771.56

Finding the Fourth Proportional to 38,728.98, 53,403.28 and 26,771.56

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Solution

The fourth proportional to 38,728.98, 53,403.28 and 26,771.56 is: 36,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.98 : 53,403.28 = 26,771.56 : x
  2. Step 2: Convert to fraction form
    38,728.98/53,403.28 = 26,771.56/x
  3. Step 3: Cross multiply
    38,728.98x = 53,403.28 × 26,771.56
  4. Step 4: Simplify right side
    38,728.98x = 1,429,688,914.28
  5. Step 5: Solve for x
    x = 1,429,688,914.28/38,728.98
  6. Step 6: Final answer
    x = 36,915.22

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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.