Home / 27,518.40-37,972.80-19,029.60

Finding the Fourth Proportional to 27,518.40, 37,972.80 and 19,029.60

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Solution

The fourth proportional to 27,518.40, 37,972.80 and 19,029.60 is: 26,259.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,518.40 : 37,972.80 = 19,029.60 : x
  2. Step 2: Convert to fraction form
    27,518.40/37,972.80 = 19,029.60/x
  3. Step 3: Cross multiply
    27,518.40x = 37,972.80 × 19,029.60
  4. Step 4: Simplify right side
    27,518.40x = 722,607,194.88
  5. Step 5: Solve for x
    x = 722,607,194.88/27,518.40
  6. Step 6: Final answer
    x = 26,259.06

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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.