Home / 28,977.92-39,983-17,653.28

Finding the Fourth Proportional to 28,977.92, 39,983 and 17,653.28

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Solution

The fourth proportional to 28,977.92, 39,983 and 17,653.28 is: 24,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.92 : 39,983 = 17,653.28 : x
  2. Step 2: Convert to fraction form
    28,977.92/39,983 = 17,653.28/x
  3. Step 3: Cross multiply
    28,977.92x = 39,983 × 17,653.28
  4. Step 4: Simplify right side
    28,977.92x = 705,831,094.24
  5. Step 5: Solve for x
    x = 705,831,094.24/28,977.92
  6. Step 6: Final answer
    x = 24,357.55

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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.