Home / 21,003.99-28,984.82-12,051.35

Finding the Fourth Proportional to 21,003.99, 28,984.82 and 12,051.35

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Solution

The fourth proportional to 21,003.99, 28,984.82 and 12,051.35 is: 16,630.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,003.99 : 28,984.82 = 12,051.35 : x
  2. Step 2: Convert to fraction form
    21,003.99/28,984.82 = 12,051.35/x
  3. Step 3: Cross multiply
    21,003.99x = 28,984.82 × 12,051.35
  4. Step 4: Simplify right side
    21,003.99x = 349,306,210.51
  5. Step 5: Solve for x
    x = 349,306,210.51/21,003.99
  6. Step 6: Final answer
    x = 16,630.47

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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.