Home / 19,354.49-28,984.98-11,009.21

Finding the Fourth Proportional to 19,354.49, 28,984.98 and 11,009.21

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Solution

The fourth proportional to 19,354.49, 28,984.98 and 11,009.21 is: 16,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,354.49 : 28,984.98 = 11,009.21 : x
  2. Step 2: Convert to fraction form
    19,354.49/28,984.98 = 11,009.21/x
  3. Step 3: Cross multiply
    19,354.49x = 28,984.98 × 11,009.21
  4. Step 4: Simplify right side
    19,354.49x = 319,101,762.95
  5. Step 5: Solve for x
    x = 319,101,762.95/19,354.49
  6. Step 6: Final answer
    x = 16,487.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.