Home / 28,222.33-38,947.26-15,476.67

Finding the Fourth Proportional to 28,222.33, 38,947.26 and 15,476.67

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Solution

The fourth proportional to 28,222.33, 38,947.26 and 15,476.67 is: 21,358.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.33 : 38,947.26 = 15,476.67 : x
  2. Step 2: Convert to fraction form
    28,222.33/38,947.26 = 15,476.67/x
  3. Step 3: Cross multiply
    28,222.33x = 38,947.26 × 15,476.67
  4. Step 4: Simplify right side
    28,222.33x = 602,773,890.42
  5. Step 5: Solve for x
    x = 602,773,890.42/28,222.33
  6. Step 6: Final answer
    x = 21,358.05

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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.