Home / 28,000.76-42,018.73-11,360.87

Finding the Fourth Proportional to 28,000.76, 42,018.73 and 11,360.87

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Solution

The fourth proportional to 28,000.76, 42,018.73 and 11,360.87 is: 17,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.76 : 42,018.73 = 11,360.87 : x
  2. Step 2: Convert to fraction form
    28,000.76/42,018.73 = 11,360.87/x
  3. Step 3: Cross multiply
    28,000.76x = 42,018.73 × 11,360.87
  4. Step 4: Simplify right side
    28,000.76x = 477,369,090.60
  5. Step 5: Solve for x
    x = 477,369,090.60/28,000.76
  6. Step 6: Final answer
    x = 17,048.43

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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.