Home / 36,921.79-55,386.11-28,611.10

Finding the Fourth Proportional to 36,921.79, 55,386.11 and 28,611.10

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Solution

The fourth proportional to 36,921.79, 55,386.11 and 28,611.10 is: 42,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.79 : 55,386.11 = 28,611.10 : x
  2. Step 2: Convert to fraction form
    36,921.79/55,386.11 = 28,611.10/x
  3. Step 3: Cross multiply
    36,921.79x = 55,386.11 × 28,611.10
  4. Step 4: Simplify right side
    36,921.79x = 1,584,657,388.77
  5. Step 5: Solve for x
    x = 1,584,657,388.77/36,921.79
  6. Step 6: Final answer
    x = 42,919.31

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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.