Home / 31,036-42,829.12-16,888.64

Finding the Fourth Proportional to 31,036, 42,829.12 and 16,888.64

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Solution

The fourth proportional to 31,036, 42,829.12 and 16,888.64 is: 23,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,036 : 42,829.12 = 16,888.64 : x
  2. Step 2: Convert to fraction form
    31,036/42,829.12 = 16,888.64/x
  3. Step 3: Cross multiply
    31,036x = 42,829.12 × 16,888.64
  4. Step 4: Simplify right side
    31,036x = 723,325,589.20
  5. Step 5: Solve for x
    x = 723,325,589.20/31,036
  6. Step 6: Final answer
    x = 23,306.02

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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.