Home / 28,749.47-43,128.27-9,029.63

Finding the Fourth Proportional to 28,749.47, 43,128.27 and 9,029.63

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Solution

The fourth proportional to 28,749.47, 43,128.27 and 9,029.63 is: 13,545.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.47 : 43,128.27 = 9,029.63 : x
  2. Step 2: Convert to fraction form
    28,749.47/43,128.27 = 9,029.63/x
  3. Step 3: Cross multiply
    28,749.47x = 43,128.27 × 9,029.63
  4. Step 4: Simplify right side
    28,749.47x = 389,432,320.64
  5. Step 5: Solve for x
    x = 389,432,320.64/28,749.47
  6. Step 6: Final answer
    x = 13,545.72

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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.