Home / 38,749.35-58,103.81-13,785.76

Finding the Fourth Proportional to 38,749.35, 58,103.81 and 13,785.76

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Solution

The fourth proportional to 38,749.35, 58,103.81 and 13,785.76 is: 20,671.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,749.35 : 58,103.81 = 13,785.76 : x
  2. Step 2: Convert to fraction form
    38,749.35/58,103.81 = 13,785.76/x
  3. Step 3: Cross multiply
    38,749.35x = 58,103.81 × 13,785.76
  4. Step 4: Simplify right side
    38,749.35x = 801,005,312.69
  5. Step 5: Solve for x
    x = 801,005,312.69/38,749.35
  6. Step 6: Final answer
    x = 20,671.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.