Home / 28,758.06-43,137.12-9,038.34

Finding the Fourth Proportional to 28,758.06, 43,137.12 and 9,038.34

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Solution

The fourth proportional to 28,758.06, 43,137.12 and 9,038.34 is: 13,557.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758.06 : 43,137.12 = 9,038.34 : x
  2. Step 2: Convert to fraction form
    28,758.06/43,137.12 = 9,038.34/x
  3. Step 3: Cross multiply
    28,758.06x = 43,137.12 × 9,038.34
  4. Step 4: Simplify right side
    28,758.06x = 389,887,957.18
  5. Step 5: Solve for x
    x = 389,887,957.18/28,758.06
  6. Step 6: Final answer
    x = 13,557.52

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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.