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Finding the Fourth Proportional to 28,601, 42,914.46 and 13,807.16

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Solution

The fourth proportional to 28,601, 42,914.46 and 13,807.16 is: 20,717.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601 : 42,914.46 = 13,807.16 : x
  2. Step 2: Convert to fraction form
    28,601/42,914.46 = 13,807.16/x
  3. Step 3: Cross multiply
    28,601x = 42,914.46 × 13,807.16
  4. Step 4: Simplify right side
    28,601x = 592,526,815.53
  5. Step 5: Solve for x
    x = 592,526,815.53/28,601
  6. Step 6: Final answer
    x = 20,717.00

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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.