Home / 15,383.02-21,240.45-12,020.02

Finding the Fourth Proportional to 15,383.02, 21,240.45 and 12,020.02

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Solution

The fourth proportional to 15,383.02, 21,240.45 and 12,020.02 is: 16,596.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.02 : 21,240.45 = 12,020.02 : x
  2. Step 2: Convert to fraction form
    15,383.02/21,240.45 = 12,020.02/x
  3. Step 3: Cross multiply
    15,383.02x = 21,240.45 × 12,020.02
  4. Step 4: Simplify right side
    15,383.02x = 255,310,633.81
  5. Step 5: Solve for x
    x = 255,310,633.81/15,383.02
  6. Step 6: Final answer
    x = 16,596.91

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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.