Home / 27,971.03-38,580.36-18,407.87

Finding the Fourth Proportional to 27,971.03, 38,580.36 and 18,407.87

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Solution

The fourth proportional to 27,971.03, 38,580.36 and 18,407.87 is: 25,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.03 : 38,580.36 = 18,407.87 : x
  2. Step 2: Convert to fraction form
    27,971.03/38,580.36 = 18,407.87/x
  3. Step 3: Cross multiply
    27,971.03x = 38,580.36 × 18,407.87
  4. Step 4: Simplify right side
    27,971.03x = 710,182,058.53
  5. Step 5: Solve for x
    x = 710,182,058.53/27,971.03
  6. Step 6: Final answer
    x = 25,389.92

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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.