Home / 21,807.53-30,095.94-12,376.70

Finding the Fourth Proportional to 21,807.53, 30,095.94 and 12,376.70

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Solution

The fourth proportional to 21,807.53, 30,095.94 and 12,376.70 is: 17,080.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.53 : 30,095.94 = 12,376.70 : x
  2. Step 2: Convert to fraction form
    21,807.53/30,095.94 = 12,376.70/x
  3. Step 3: Cross multiply
    21,807.53x = 30,095.94 × 12,376.70
  4. Step 4: Simplify right side
    21,807.53x = 372,488,208.23
  5. Step 5: Solve for x
    x = 372,488,208.23/21,807.53
  6. Step 6: Final answer
    x = 17,080.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.