Home / 20,275.40-27,965.97-18,602.35

Finding the Fourth Proportional to 20,275.40, 27,965.97 and 18,602.35

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Solution

The fourth proportional to 20,275.40, 27,965.97 and 18,602.35 is: 25,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.40 : 27,965.97 = 18,602.35 : x
  2. Step 2: Convert to fraction form
    20,275.40/27,965.97 = 18,602.35/x
  3. Step 3: Cross multiply
    20,275.40x = 27,965.97 × 18,602.35
  4. Step 4: Simplify right side
    20,275.40x = 520,232,762.03
  5. Step 5: Solve for x
    x = 520,232,762.03/20,275.40
  6. Step 6: Final answer
    x = 25,658.32

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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.