Home / 28,749.60-39,669.75-16,645.77

Finding the Fourth Proportional to 28,749.60, 39,669.75 and 16,645.77

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Solution

The fourth proportional to 28,749.60, 39,669.75 and 16,645.77 is: 22,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.60 : 39,669.75 = 16,645.77 : x
  2. Step 2: Convert to fraction form
    28,749.60/39,669.75 = 16,645.77/x
  3. Step 3: Cross multiply
    28,749.60x = 39,669.75 × 16,645.77
  4. Step 4: Simplify right side
    28,749.60x = 660,333,534.46
  5. Step 5: Solve for x
    x = 660,333,534.46/28,749.60
  6. Step 6: Final answer
    x = 22,968.44

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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.