Home / 19,385.65-26,752.44-11,427.40

Finding the Fourth Proportional to 19,385.65, 26,752.44 and 11,427.40

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Solution

The fourth proportional to 19,385.65, 26,752.44 and 11,427.40 is: 15,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.65 : 26,752.44 = 11,427.40 : x
  2. Step 2: Convert to fraction form
    19,385.65/26,752.44 = 11,427.40/x
  3. Step 3: Cross multiply
    19,385.65x = 26,752.44 × 11,427.40
  4. Step 4: Simplify right side
    19,385.65x = 305,710,832.86
  5. Step 5: Solve for x
    x = 305,710,832.86/19,385.65
  6. Step 6: Final answer
    x = 15,769.96

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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.