Home / 28,018.60-42,027.68-11,378.46

Finding the Fourth Proportional to 28,018.60, 42,027.68 and 11,378.46

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Solution

The fourth proportional to 28,018.60, 42,027.68 and 11,378.46 is: 17,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.60 : 42,027.68 = 11,378.46 : x
  2. Step 2: Convert to fraction form
    28,018.60/42,027.68 = 11,378.46/x
  3. Step 3: Cross multiply
    28,018.60x = 42,027.68 × 11,378.46
  4. Step 4: Simplify right side
    28,018.60x = 478,210,275.77
  5. Step 5: Solve for x
    x = 478,210,275.77/28,018.60
  6. Step 6: Final answer
    x = 17,067.60

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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.