Home / 34,228.80-51,343.20-21,038.40

Finding the Fourth Proportional to 34,228.80, 51,343.20 and 21,038.40

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Solution

The fourth proportional to 34,228.80, 51,343.20 and 21,038.40 is: 31,557.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,228.80 : 51,343.20 = 21,038.40 : x
  2. Step 2: Convert to fraction form
    34,228.80/51,343.20 = 21,038.40/x
  3. Step 3: Cross multiply
    34,228.80x = 51,343.20 × 21,038.40
  4. Step 4: Simplify right side
    34,228.80x = 1,080,178,778.88
  5. Step 5: Solve for x
    x = 1,080,178,778.88/34,228.80
  6. Step 6: Final answer
    x = 31,557.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.