Home / 20,913.02-28,852.93-11,954.19

Finding the Fourth Proportional to 20,913.02, 28,852.93 and 11,954.19

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Solution

The fourth proportional to 20,913.02, 28,852.93 and 11,954.19 is: 16,492.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913.02 : 28,852.93 = 11,954.19 : x
  2. Step 2: Convert to fraction form
    20,913.02/28,852.93 = 11,954.19/x
  3. Step 3: Cross multiply
    20,913.02x = 28,852.93 × 11,954.19
  4. Step 4: Simplify right side
    20,913.02x = 344,913,407.28
  5. Step 5: Solve for x
    x = 344,913,407.28/20,913.02
  6. Step 6: Final answer
    x = 16,492.76

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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.