Home / 26,453-39,681.10-7,985.16

Finding the Fourth Proportional to 26,453, 39,681.10 and 7,985.16

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Solution

The fourth proportional to 26,453, 39,681.10 and 7,985.16 is: 11,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,453 : 39,681.10 = 7,985.16 : x
  2. Step 2: Convert to fraction form
    26,453/39,681.10 = 7,985.16/x
  3. Step 3: Cross multiply
    26,453x = 39,681.10 × 7,985.16
  4. Step 4: Simplify right side
    26,453x = 316,859,932.48
  5. Step 5: Solve for x
    x = 316,859,932.48/26,453
  6. Step 6: Final answer
    x = 11,978.22

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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.