Home / 19,578.60-27,000.09-15,095.25

Finding the Fourth Proportional to 19,578.60, 27,000.09 and 15,095.25

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Solution

The fourth proportional to 19,578.60, 27,000.09 and 15,095.25 is: 20,817.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.60 : 27,000.09 = 15,095.25 : x
  2. Step 2: Convert to fraction form
    19,578.60/27,000.09 = 15,095.25/x
  3. Step 3: Cross multiply
    19,578.60x = 27,000.09 × 15,095.25
  4. Step 4: Simplify right side
    19,578.60x = 407,573,108.57
  5. Step 5: Solve for x
    x = 407,573,108.57/19,578.60
  6. Step 6: Final answer
    x = 20,817.28

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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.