Home / 38,739.24-53,455.74-21,741.18

Finding the Fourth Proportional to 38,739.24, 53,455.74 and 21,741.18

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Solution

The fourth proportional to 38,739.24, 53,455.74 and 21,741.18 is: 30,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,739.24 : 53,455.74 = 21,741.18 : x
  2. Step 2: Convert to fraction form
    38,739.24/53,455.74 = 21,741.18/x
  3. Step 3: Cross multiply
    38,739.24x = 53,455.74 × 21,741.18
  4. Step 4: Simplify right side
    38,739.24x = 1,162,190,865.37
  5. Step 5: Solve for x
    x = 1,162,190,865.37/38,739.24
  6. Step 6: Final answer
    x = 30,000.35

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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.