Home / 30,840.50-42,559.90-16,693.44

Finding the Fourth Proportional to 30,840.50, 42,559.90 and 16,693.44

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Solution

The fourth proportional to 30,840.50, 42,559.90 and 16,693.44 is: 23,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.50 : 42,559.90 = 16,693.44 : x
  2. Step 2: Convert to fraction form
    30,840.50/42,559.90 = 16,693.44/x
  3. Step 3: Cross multiply
    30,840.50x = 42,559.90 × 16,693.44
  4. Step 4: Simplify right side
    30,840.50x = 710,471,137.06
  5. Step 5: Solve for x
    x = 710,471,137.06/30,840.50
  6. Step 6: Final answer
    x = 23,036.95

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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.