Home / 28,429.52-42,637.32-12,625.84

Finding the Fourth Proportional to 28,429.52, 42,637.32 and 12,625.84

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Solution

The fourth proportional to 28,429.52, 42,637.32 and 12,625.84 is: 18,935.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,429.52 : 42,637.32 = 12,625.84 : x
  2. Step 2: Convert to fraction form
    28,429.52/42,637.32 = 12,625.84/x
  3. Step 3: Cross multiply
    28,429.52x = 42,637.32 × 12,625.84
  4. Step 4: Simplify right side
    28,429.52x = 538,331,980.35
  5. Step 5: Solve for x
    x = 538,331,980.35/28,429.52
  6. Step 6: Final answer
    x = 18,935.67

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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.