Home / 25,783.64-35,570.78-15,708.39

Finding the Fourth Proportional to 25,783.64, 35,570.78 and 15,708.39

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Solution

The fourth proportional to 25,783.64, 35,570.78 and 15,708.39 is: 21,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,783.64 : 35,570.78 = 15,708.39 : x
  2. Step 2: Convert to fraction form
    25,783.64/35,570.78 = 15,708.39/x
  3. Step 3: Cross multiply
    25,783.64x = 35,570.78 × 15,708.39
  4. Step 4: Simplify right side
    25,783.64x = 558,759,606.30
  5. Step 5: Solve for x
    x = 558,759,606.30/25,783.64
  6. Step 6: Final answer
    x = 21,671.10

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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.