Home / 15,208.89-21,002.76-14,380.62

Finding the Fourth Proportional to 15,208.89, 21,002.76 and 14,380.62

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Solution

The fourth proportional to 15,208.89, 21,002.76 and 14,380.62 is: 19,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,208.89 : 21,002.76 = 14,380.62 : x
  2. Step 2: Convert to fraction form
    15,208.89/21,002.76 = 14,380.62/x
  3. Step 3: Cross multiply
    15,208.89x = 21,002.76 × 14,380.62
  4. Step 4: Simplify right side
    15,208.89x = 302,032,710.51
  5. Step 5: Solve for x
    x = 302,032,710.51/15,208.89
  6. Step 6: Final answer
    x = 19,858.96

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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.