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Finding the Fourth Proportional to 25,612.40, 35,347.80 and 19,314.80

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Solution

The fourth proportional to 25,612.40, 35,347.80 and 19,314.80 is: 26,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,612.40 : 35,347.80 = 19,314.80 : x
  2. Step 2: Convert to fraction form
    25,612.40/35,347.80 = 19,314.80/x
  3. Step 3: Cross multiply
    25,612.40x = 35,347.80 × 19,314.80
  4. Step 4: Simplify right side
    25,612.40x = 682,735,687.44
  5. Step 5: Solve for x
    x = 682,735,687.44/25,612.40
  6. Step 6: Final answer
    x = 26,656.45

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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.