Home / 28,830.10-43,261.35-15,683.39

Finding the Fourth Proportional to 28,830.10, 43,261.35 and 15,683.39

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Solution

The fourth proportional to 28,830.10, 43,261.35 and 15,683.39 is: 23,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.10 : 43,261.35 = 15,683.39 : x
  2. Step 2: Convert to fraction form
    28,830.10/43,261.35 = 15,683.39/x
  3. Step 3: Cross multiply
    28,830.10x = 43,261.35 × 15,683.39
  4. Step 4: Simplify right side
    28,830.10x = 678,484,623.98
  5. Step 5: Solve for x
    x = 678,484,623.98/28,830.10
  6. Step 6: Final answer
    x = 23,533.90

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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.