Home / 30,573.12-42,171.48-22,087.70

Finding the Fourth Proportional to 30,573.12, 42,171.48 and 22,087.70

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Solution

The fourth proportional to 30,573.12, 42,171.48 and 22,087.70 is: 30,466.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,573.12 : 42,171.48 = 22,087.70 : x
  2. Step 2: Convert to fraction form
    30,573.12/42,171.48 = 22,087.70/x
  3. Step 3: Cross multiply
    30,573.12x = 42,171.48 × 22,087.70
  4. Step 4: Simplify right side
    30,573.12x = 931,470,787.94
  5. Step 5: Solve for x
    x = 931,470,787.94/30,573.12
  6. Step 6: Final answer
    x = 30,466.98

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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.