Home / 19,526.35-26,939.75-12,811.35

Finding the Fourth Proportional to 19,526.35, 26,939.75 and 12,811.35

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Solution

The fourth proportional to 19,526.35, 26,939.75 and 12,811.35 is: 17,675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,526.35 : 26,939.75 = 12,811.35 : x
  2. Step 2: Convert to fraction form
    19,526.35/26,939.75 = 12,811.35/x
  3. Step 3: Cross multiply
    19,526.35x = 26,939.75 × 12,811.35
  4. Step 4: Simplify right side
    19,526.35x = 345,134,566.16
  5. Step 5: Solve for x
    x = 345,134,566.16/19,526.35
  6. Step 6: Final answer
    x = 17,675.32

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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.