Home / 26,430.48-39,661.72-10,639.02

Finding the Fourth Proportional to 26,430.48, 39,661.72 and 10,639.02

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Solution

The fourth proportional to 26,430.48, 39,661.72 and 10,639.02 is: 15,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,430.48 : 39,661.72 = 10,639.02 : x
  2. Step 2: Convert to fraction form
    26,430.48/39,661.72 = 10,639.02/x
  3. Step 3: Cross multiply
    26,430.48x = 39,661.72 × 10,639.02
  4. Step 4: Simplify right side
    26,430.48x = 421,961,832.31
  5. Step 5: Solve for x
    x = 421,961,832.31/26,430.48
  6. Step 6: Final answer
    x = 15,964.97

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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.