Home / 38,378.43-52,955.93-21,378.84

Finding the Fourth Proportional to 38,378.43, 52,955.93 and 21,378.84

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Solution

The fourth proportional to 38,378.43, 52,955.93 and 21,378.84 is: 29,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,378.43 : 52,955.93 = 21,378.84 : x
  2. Step 2: Convert to fraction form
    38,378.43/52,955.93 = 21,378.84/x
  3. Step 3: Cross multiply
    38,378.43x = 52,955.93 × 21,378.84
  4. Step 4: Simplify right side
    38,378.43x = 1,132,136,089.13
  5. Step 5: Solve for x
    x = 1,132,136,089.13/38,378.43
  6. Step 6: Final answer
    x = 29,499.28

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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.