Home / 27,145.19-40,657.63-20,858.93

Finding the Fourth Proportional to 27,145.19, 40,657.63 and 20,858.93

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Solution

The fourth proportional to 27,145.19, 40,657.63 and 20,858.93 is: 31,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,145.19 : 40,657.63 = 20,858.93 : x
  2. Step 2: Convert to fraction form
    27,145.19/40,657.63 = 20,858.93/x
  3. Step 3: Cross multiply
    27,145.19x = 40,657.63 × 20,858.93
  4. Step 4: Simplify right side
    27,145.19x = 848,074,658.14
  5. Step 5: Solve for x
    x = 848,074,658.14/27,145.19
  6. Step 6: Final answer
    x = 31,242.17

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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.