Home / 21,563.49-32,302.18-17,128.67

Finding the Fourth Proportional to 21,563.49, 32,302.18 and 17,128.67

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Solution

The fourth proportional to 21,563.49, 32,302.18 and 17,128.67 is: 25,658.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.49 : 32,302.18 = 17,128.67 : x
  2. Step 2: Convert to fraction form
    21,563.49/32,302.18 = 17,128.67/x
  3. Step 3: Cross multiply
    21,563.49x = 32,302.18 × 17,128.67
  4. Step 4: Simplify right side
    21,563.49x = 553,293,177.17
  5. Step 5: Solve for x
    x = 553,293,177.17/21,563.49
  6. Step 6: Final answer
    x = 25,658.80

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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.