Home / 19,113.60-28,670.40-14,739.60

Finding the Fourth Proportional to 19,113.60, 28,670.40 and 14,739.60

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Solution

The fourth proportional to 19,113.60, 28,670.40 and 14,739.60 is: 22,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.60 : 28,670.40 = 14,739.60 : x
  2. Step 2: Convert to fraction form
    19,113.60/28,670.40 = 14,739.60/x
  3. Step 3: Cross multiply
    19,113.60x = 28,670.40 × 14,739.60
  4. Step 4: Simplify right side
    19,113.60x = 422,590,227.84
  5. Step 5: Solve for x
    x = 422,590,227.84/19,113.60
  6. Step 6: Final answer
    x = 22,109.40

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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.