Home / 38,426.81-53,027.69-21,199.86

Finding the Fourth Proportional to 38,426.81, 53,027.69 and 21,199.86

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Solution

The fourth proportional to 38,426.81, 53,027.69 and 21,199.86 is: 29,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.81 : 53,027.69 = 21,199.86 : x
  2. Step 2: Convert to fraction form
    38,426.81/53,027.69 = 21,199.86/x
  3. Step 3: Cross multiply
    38,426.81x = 53,027.69 × 21,199.86
  4. Step 4: Simplify right side
    38,426.81x = 1,124,179,498.12
  5. Step 5: Solve for x
    x = 1,124,179,498.12/38,426.81
  6. Step 6: Final answer
    x = 29,255.09

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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.