Home / 26,376.16-39,580.16-13,905.40

Finding the Fourth Proportional to 26,376.16, 39,580.16 and 13,905.40

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Solution

The fourth proportional to 26,376.16, 39,580.16 and 13,905.40 is: 20,866.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,376.16 : 39,580.16 = 13,905.40 : x
  2. Step 2: Convert to fraction form
    26,376.16/39,580.16 = 13,905.40/x
  3. Step 3: Cross multiply
    26,376.16x = 39,580.16 × 13,905.40
  4. Step 4: Simplify right side
    26,376.16x = 550,377,956.86
  5. Step 5: Solve for x
    x = 550,377,956.86/26,376.16
  6. Step 6: Final answer
    x = 20,866.49

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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.