Home / 19,642.32-29,485.26-9,778.95

Finding the Fourth Proportional to 19,642.32, 29,485.26 and 9,778.95

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Solution

The fourth proportional to 19,642.32, 29,485.26 and 9,778.95 is: 14,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.32 : 29,485.26 = 9,778.95 : x
  2. Step 2: Convert to fraction form
    19,642.32/29,485.26 = 9,778.95/x
  3. Step 3: Cross multiply
    19,642.32x = 29,485.26 × 9,778.95
  4. Step 4: Simplify right side
    19,642.32x = 288,334,883.28
  5. Step 5: Solve for x
    x = 288,334,883.28/19,642.32
  6. Step 6: Final answer
    x = 14,679.27

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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.