Home / 28,774.76-39,699.66-16,829.64

Finding the Fourth Proportional to 28,774.76, 39,699.66 and 16,829.64

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Solution

The fourth proportional to 28,774.76, 39,699.66 and 16,829.64 is: 23,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,774.76 : 39,699.66 = 16,829.64 : x
  2. Step 2: Convert to fraction form
    28,774.76/39,699.66 = 16,829.64/x
  3. Step 3: Cross multiply
    28,774.76x = 39,699.66 × 16,829.64
  4. Step 4: Simplify right side
    28,774.76x = 668,130,985.92
  5. Step 5: Solve for x
    x = 668,130,985.92/28,774.76
  6. Step 6: Final answer
    x = 23,219.34

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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.