Home / 28,817.10-39,762.36-16,880.67

Finding the Fourth Proportional to 28,817.10, 39,762.36 and 16,880.67

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Solution

The fourth proportional to 28,817.10, 39,762.36 and 16,880.67 is: 23,292.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.10 : 39,762.36 = 16,880.67 : x
  2. Step 2: Convert to fraction form
    28,817.10/39,762.36 = 16,880.67/x
  3. Step 3: Cross multiply
    28,817.10x = 39,762.36 × 16,880.67
  4. Step 4: Simplify right side
    28,817.10x = 671,215,277.58
  5. Step 5: Solve for x
    x = 671,215,277.58/28,817.10
  6. Step 6: Final answer
    x = 23,292.26

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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.