Home / 20,507.08-28,300.32-11,554.06

Finding the Fourth Proportional to 20,507.08, 28,300.32 and 11,554.06

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Solution

The fourth proportional to 20,507.08, 28,300.32 and 11,554.06 is: 15,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,507.08 : 28,300.32 = 11,554.06 : x
  2. Step 2: Convert to fraction form
    20,507.08/28,300.32 = 11,554.06/x
  3. Step 3: Cross multiply
    20,507.08x = 28,300.32 × 11,554.06
  4. Step 4: Simplify right side
    20,507.08x = 326,983,595.30
  5. Step 5: Solve for x
    x = 326,983,595.30/20,507.08
  6. Step 6: Final answer
    x = 15,944.91

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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.