Home / 28,607.04-39,480.48-16,666.56

Finding the Fourth Proportional to 28,607.04, 39,480.48 and 16,666.56

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Solution

The fourth proportional to 28,607.04, 39,480.48 and 16,666.56 is: 23,001.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.04 : 39,480.48 = 16,666.56 : x
  2. Step 2: Convert to fraction form
    28,607.04/39,480.48 = 16,666.56/x
  3. Step 3: Cross multiply
    28,607.04x = 39,480.48 × 16,666.56
  4. Step 4: Simplify right side
    28,607.04x = 658,003,788.75
  5. Step 5: Solve for x
    x = 658,003,788.75/28,607.04
  6. Step 6: Final answer
    x = 23,001.46

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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.