Home / 30,840.57-42,559.99-16,693.43

Finding the Fourth Proportional to 30,840.57, 42,559.99 and 16,693.43

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Solution

The fourth proportional to 30,840.57, 42,559.99 and 16,693.43 is: 23,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.57 : 42,559.99 = 16,693.43 : x
  2. Step 2: Convert to fraction form
    30,840.57/42,559.99 = 16,693.43/x
  3. Step 3: Cross multiply
    30,840.57x = 42,559.99 × 16,693.43
  4. Step 4: Simplify right side
    30,840.57x = 710,471,959.33
  5. Step 5: Solve for x
    x = 710,471,959.33/30,840.57
  6. Step 6: Final answer
    x = 23,036.93

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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.