Home / 28,036.16-38,690.19-15,461.36

Finding the Fourth Proportional to 28,036.16, 38,690.19 and 15,461.36

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Solution

The fourth proportional to 28,036.16, 38,690.19 and 15,461.36 is: 21,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.16 : 38,690.19 = 15,461.36 : x
  2. Step 2: Convert to fraction form
    28,036.16/38,690.19 = 15,461.36/x
  3. Step 3: Cross multiply
    28,036.16x = 38,690.19 × 15,461.36
  4. Step 4: Simplify right side
    28,036.16x = 598,202,956.06
  5. Step 5: Solve for x
    x = 598,202,956.06/28,036.16
  6. Step 6: Final answer
    x = 21,336.84

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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.