Home / 19,306.71-28,903.73-11,888.91

Finding the Fourth Proportional to 19,306.71, 28,903.73 and 11,888.91

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Solution

The fourth proportional to 19,306.71, 28,903.73 and 11,888.91 is: 17,798.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,306.71 : 28,903.73 = 11,888.91 : x
  2. Step 2: Convert to fraction form
    19,306.71/28,903.73 = 11,888.91/x
  3. Step 3: Cross multiply
    19,306.71x = 28,903.73 × 11,888.91
  4. Step 4: Simplify right side
    19,306.71x = 343,633,785.19
  5. Step 5: Solve for x
    x = 343,633,785.19/19,306.71
  6. Step 6: Final answer
    x = 17,798.67

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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.