Home / 26,985.81-40,473.93-15,879.49

Finding the Fourth Proportional to 26,985.81, 40,473.93 and 15,879.49

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Solution

The fourth proportional to 26,985.81, 40,473.93 and 15,879.49 is: 23,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.81 : 40,473.93 = 15,879.49 : x
  2. Step 2: Convert to fraction form
    26,985.81/40,473.93 = 15,879.49/x
  3. Step 3: Cross multiply
    26,985.81x = 40,473.93 × 15,879.49
  4. Step 4: Simplify right side
    26,985.81x = 642,705,463.40
  5. Step 5: Solve for x
    x = 642,705,463.40/26,985.81
  6. Step 6: Final answer
    x = 23,816.42

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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.