Home / 28,030.56-38,682.48-15,283.64

Finding the Fourth Proportional to 28,030.56, 38,682.48 and 15,283.64

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Solution

The fourth proportional to 28,030.56, 38,682.48 and 15,283.64 is: 21,091.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.56 : 38,682.48 = 15,283.64 : x
  2. Step 2: Convert to fraction form
    28,030.56/38,682.48 = 15,283.64/x
  3. Step 3: Cross multiply
    28,030.56x = 38,682.48 × 15,283.64
  4. Step 4: Simplify right side
    28,030.56x = 591,209,098.63
  5. Step 5: Solve for x
    x = 591,209,098.63/28,030.56
  6. Step 6: Final answer
    x = 21,091.59

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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.