Home / 25,784.64-35,572.15-15,709.39

Finding the Fourth Proportional to 25,784.64, 35,572.15 and 15,709.39

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Solution

The fourth proportional to 25,784.64, 35,572.15 and 15,709.39 is: 21,672.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.64 : 35,572.15 = 15,709.39 : x
  2. Step 2: Convert to fraction form
    25,784.64/35,572.15 = 15,709.39/x
  3. Step 3: Cross multiply
    25,784.64x = 35,572.15 × 15,709.39
  4. Step 4: Simplify right side
    25,784.64x = 558,816,777.49
  5. Step 5: Solve for x
    x = 558,816,777.49/25,784.64
  6. Step 6: Final answer
    x = 21,672.47

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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.