Home / 19,117.20-28,675.80-14,451.60

Finding the Fourth Proportional to 19,117.20, 28,675.80 and 14,451.60

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Solution

The fourth proportional to 19,117.20, 28,675.80 and 14,451.60 is: 21,677.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,117.20 : 28,675.80 = 14,451.60 : x
  2. Step 2: Convert to fraction form
    19,117.20/28,675.80 = 14,451.60/x
  3. Step 3: Cross multiply
    19,117.20x = 28,675.80 × 14,451.60
  4. Step 4: Simplify right side
    19,117.20x = 414,411,191.28
  5. Step 5: Solve for x
    x = 414,411,191.28/19,117.20
  6. Step 6: Final answer
    x = 21,677.40

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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.