Home / 28,023.30-38,670.98-15,276.21

Finding the Fourth Proportional to 28,023.30, 38,670.98 and 15,276.21

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Solution

The fourth proportional to 28,023.30, 38,670.98 and 15,276.21 is: 21,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.30 : 38,670.98 = 15,276.21 : x
  2. Step 2: Convert to fraction form
    28,023.30/38,670.98 = 15,276.21/x
  3. Step 3: Cross multiply
    28,023.30x = 38,670.98 × 15,276.21
  4. Step 4: Simplify right side
    28,023.30x = 590,745,935.00
  5. Step 5: Solve for x
    x = 590,745,935.00/28,023.30
  6. Step 6: Final answer
    x = 21,080.53

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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.