Home / 25,638.68-35,392.16-15,570.36

Finding the Fourth Proportional to 25,638.68, 35,392.16 and 15,570.36

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Solution

The fourth proportional to 25,638.68, 35,392.16 and 15,570.36 is: 21,493.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.68 : 35,392.16 = 15,570.36 : x
  2. Step 2: Convert to fraction form
    25,638.68/35,392.16 = 15,570.36/x
  3. Step 3: Cross multiply
    25,638.68x = 35,392.16 × 15,570.36
  4. Step 4: Simplify right side
    25,638.68x = 551,068,594.53
  5. Step 5: Solve for x
    x = 551,068,594.53/25,638.68
  6. Step 6: Final answer
    x = 21,493.65

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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.