Home / 30,455.32-42,028.93-17,027.55

Finding the Fourth Proportional to 30,455.32, 42,028.93 and 17,027.55

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Solution

The fourth proportional to 30,455.32, 42,028.93 and 17,027.55 is: 23,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.32 : 42,028.93 = 17,027.55 : x
  2. Step 2: Convert to fraction form
    30,455.32/42,028.93 = 17,027.55/x
  3. Step 3: Cross multiply
    30,455.32x = 42,028.93 × 17,027.55
  4. Step 4: Simplify right side
    30,455.32x = 715,649,707.02
  5. Step 5: Solve for x
    x = 715,649,707.02/30,455.32
  6. Step 6: Final answer
    x = 23,498.35

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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.