Home / 31,040.34-42,835.60-16,893.20

Finding the Fourth Proportional to 31,040.34, 42,835.60 and 16,893.20

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Solution

The fourth proportional to 31,040.34, 42,835.60 and 16,893.20 is: 23,312.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,040.34 : 42,835.60 = 16,893.20 : x
  2. Step 2: Convert to fraction form
    31,040.34/42,835.60 = 16,893.20/x
  3. Step 3: Cross multiply
    31,040.34x = 42,835.60 × 16,893.20
  4. Step 4: Simplify right side
    31,040.34x = 723,630,357.92
  5. Step 5: Solve for x
    x = 723,630,357.92/31,040.34
  6. Step 6: Final answer
    x = 23,312.58

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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.