Home / 28,723.32-43,084.98-13,130

Finding the Fourth Proportional to 28,723.32, 43,084.98 and 13,130

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Solution

The fourth proportional to 28,723.32, 43,084.98 and 13,130 is: 19,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.32 : 43,084.98 = 13,130 : x
  2. Step 2: Convert to fraction form
    28,723.32/43,084.98 = 13,130/x
  3. Step 3: Cross multiply
    28,723.32x = 43,084.98 × 13,130
  4. Step 4: Simplify right side
    28,723.32x = 565,705,787.40
  5. Step 5: Solve for x
    x = 565,705,787.40/28,723.32
  6. Step 6: Final answer
    x = 19,695.00

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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.