Home / 25,785.74-38,638.35-17,903.63

Finding the Fourth Proportional to 25,785.74, 38,638.35 and 17,903.63

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Solution

The fourth proportional to 25,785.74, 38,638.35 and 17,903.63 is: 26,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.74 : 38,638.35 = 17,903.63 : x
  2. Step 2: Convert to fraction form
    25,785.74/38,638.35 = 17,903.63/x
  3. Step 3: Cross multiply
    25,785.74x = 38,638.35 × 17,903.63
  4. Step 4: Simplify right side
    25,785.74x = 691,766,529.02
  5. Step 5: Solve for x
    x = 691,766,529.02/25,785.74
  6. Step 6: Final answer
    x = 26,827.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.