Home / 27,886.08-38,483.52-15,311.04

Finding the Fourth Proportional to 27,886.08, 38,483.52 and 15,311.04

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Solution

The fourth proportional to 27,886.08, 38,483.52 and 15,311.04 is: 21,129.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.08 : 38,483.52 = 15,311.04 : x
  2. Step 2: Convert to fraction form
    27,886.08/38,483.52 = 15,311.04/x
  3. Step 3: Cross multiply
    27,886.08x = 38,483.52 × 15,311.04
  4. Step 4: Simplify right side
    27,886.08x = 589,222,714.06
  5. Step 5: Solve for x
    x = 589,222,714.06/27,886.08
  6. Step 6: Final answer
    x = 21,129.64

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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.