Home / 25,637.22-35,395.38-19,657.40

Finding the Fourth Proportional to 25,637.22, 35,395.38 and 19,657.40

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Solution

The fourth proportional to 25,637.22, 35,395.38 and 19,657.40 is: 27,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.22 : 35,395.38 = 19,657.40 : x
  2. Step 2: Convert to fraction form
    25,637.22/35,395.38 = 19,657.40/x
  3. Step 3: Cross multiply
    25,637.22x = 35,395.38 × 19,657.40
  4. Step 4: Simplify right side
    25,637.22x = 695,780,965.84
  5. Step 5: Solve for x
    x = 695,780,965.84/25,637.22
  6. Step 6: Final answer
    x = 27,139.49

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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.