Home / 28,205.84-38,911.56-16,266.32

Finding the Fourth Proportional to 28,205.84, 38,911.56 and 16,266.32

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Solution

The fourth proportional to 28,205.84, 38,911.56 and 16,266.32 is: 22,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,205.84 : 38,911.56 = 16,266.32 : x
  2. Step 2: Convert to fraction form
    28,205.84/38,911.56 = 16,266.32/x
  3. Step 3: Cross multiply
    28,205.84x = 38,911.56 × 16,266.32
  4. Step 4: Simplify right side
    28,205.84x = 632,947,886.66
  5. Step 5: Solve for x
    x = 632,947,886.66/28,205.84
  6. Step 6: Final answer
    x = 22,440.31

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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.