Home / 38,738.80-53,457.36-21,741.46

Finding the Fourth Proportional to 38,738.80, 53,457.36 and 21,741.46

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Solution

The fourth proportional to 38,738.80, 53,457.36 and 21,741.46 is: 30,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,738.80 : 53,457.36 = 21,741.46 : x
  2. Step 2: Convert to fraction form
    38,738.80/53,457.36 = 21,741.46/x
  3. Step 3: Cross multiply
    38,738.80x = 53,457.36 × 21,741.46
  4. Step 4: Simplify right side
    38,738.80x = 1,162,241,054.15
  5. Step 5: Solve for x
    x = 1,162,241,054.15/38,738.80
  6. Step 6: Final answer
    x = 30,001.99

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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.