Home / 19,695.30-29,518.35-12,656.58

Finding the Fourth Proportional to 19,695.30, 29,518.35 and 12,656.58

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Solution

The fourth proportional to 19,695.30, 29,518.35 and 12,656.58 is: 18,969.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.30 : 29,518.35 = 12,656.58 : x
  2. Step 2: Convert to fraction form
    19,695.30/29,518.35 = 12,656.58/x
  3. Step 3: Cross multiply
    19,695.30x = 29,518.35 × 12,656.58
  4. Step 4: Simplify right side
    19,695.30x = 373,601,318.70
  5. Step 5: Solve for x
    x = 373,601,318.70/19,695.30
  6. Step 6: Final answer
    x = 18,969.06

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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.