Home / 28,261.12-42,347.52-10,721.44

Finding the Fourth Proportional to 28,261.12, 42,347.52 and 10,721.44

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Solution

The fourth proportional to 28,261.12, 42,347.52 and 10,721.44 is: 16,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.12 : 42,347.52 = 10,721.44 : x
  2. Step 2: Convert to fraction form
    28,261.12/42,347.52 = 10,721.44/x
  3. Step 3: Cross multiply
    28,261.12x = 42,347.52 × 10,721.44
  4. Step 4: Simplify right side
    28,261.12x = 454,026,394.83
  5. Step 5: Solve for x
    x = 454,026,394.83/28,261.12
  6. Step 6: Final answer
    x = 16,065.41

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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.