Home / 28,875.81-43,235.84-18,855.74

Finding the Fourth Proportional to 28,875.81, 43,235.84 and 18,855.74

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Solution

The fourth proportional to 28,875.81, 43,235.84 and 18,855.74 is: 28,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.81 : 43,235.84 = 18,855.74 : x
  2. Step 2: Convert to fraction form
    28,875.81/43,235.84 = 18,855.74/x
  3. Step 3: Cross multiply
    28,875.81x = 43,235.84 × 18,855.74
  4. Step 4: Simplify right side
    28,875.81x = 815,243,588.68
  5. Step 5: Solve for x
    x = 815,243,588.68/28,875.81
  6. Step 6: Final answer
    x = 28,232.76

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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.