Home / 28,564.79-39,423.11-17,240.67

Finding the Fourth Proportional to 28,564.79, 39,423.11 and 17,240.67

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Solution

The fourth proportional to 28,564.79, 39,423.11 and 17,240.67 is: 23,794.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.79 : 39,423.11 = 17,240.67 : x
  2. Step 2: Convert to fraction form
    28,564.79/39,423.11 = 17,240.67/x
  3. Step 3: Cross multiply
    28,564.79x = 39,423.11 × 17,240.67
  4. Step 4: Simplify right side
    28,564.79x = 679,680,743.68
  5. Step 5: Solve for x
    x = 679,680,743.68/28,564.79
  6. Step 6: Final answer
    x = 23,794.36

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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.