Home / 27,971.03-38,580.37-18,407.86

Finding the Fourth Proportional to 27,971.03, 38,580.37 and 18,407.86

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Solution

The fourth proportional to 27,971.03, 38,580.37 and 18,407.86 is: 25,389.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.03 : 38,580.37 = 18,407.86 : x
  2. Step 2: Convert to fraction form
    27,971.03/38,580.37 = 18,407.86/x
  3. Step 3: Cross multiply
    27,971.03x = 38,580.37 × 18,407.86
  4. Step 4: Simplify right side
    27,971.03x = 710,181,907.24
  5. Step 5: Solve for x
    x = 710,181,907.24/27,971.03
  6. Step 6: Final answer
    x = 25,389.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.