Home / 30,565.96-45,849.81-13,917.40

Finding the Fourth Proportional to 30,565.96, 45,849.81 and 13,917.40

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Solution

The fourth proportional to 30,565.96, 45,849.81 and 13,917.40 is: 20,876.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,565.96 : 45,849.81 = 13,917.40 : x
  2. Step 2: Convert to fraction form
    30,565.96/45,849.81 = 13,917.40/x
  3. Step 3: Cross multiply
    30,565.96x = 45,849.81 × 13,917.40
  4. Step 4: Simplify right side
    30,565.96x = 638,110,145.69
  5. Step 5: Solve for x
    x = 638,110,145.69/30,565.96
  6. Step 6: Final answer
    x = 20,876.50

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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.