Home / 20,877.74-31,343.34-17,935.01

Finding the Fourth Proportional to 20,877.74, 31,343.34 and 17,935.01

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Solution

The fourth proportional to 20,877.74, 31,343.34 and 17,935.01 is: 26,925.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.74 : 31,343.34 = 17,935.01 : x
  2. Step 2: Convert to fraction form
    20,877.74/31,343.34 = 17,935.01/x
  3. Step 3: Cross multiply
    20,877.74x = 31,343.34 × 17,935.01
  4. Step 4: Simplify right side
    20,877.74x = 562,143,116.33
  5. Step 5: Solve for x
    x = 562,143,116.33/20,877.74
  6. Step 6: Final answer
    x = 26,925.48

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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.