Home / 30,840.40-42,559.70-16,693.22

Finding the Fourth Proportional to 30,840.40, 42,559.70 and 16,693.22

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Solution

The fourth proportional to 30,840.40, 42,559.70 and 16,693.22 is: 23,036.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,840.40 : 42,559.70 = 16,693.22 : x
  2. Step 2: Convert to fraction form
    30,840.40/42,559.70 = 16,693.22/x
  3. Step 3: Cross multiply
    30,840.40x = 42,559.70 × 16,693.22
  4. Step 4: Simplify right side
    30,840.40x = 710,458,435.23
  5. Step 5: Solve for x
    x = 710,458,435.23/30,840.40
  6. Step 6: Final answer
    x = 23,036.62

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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.