Home / 28,047.72-38,707.02-15,473.28

Finding the Fourth Proportional to 28,047.72, 38,707.02 and 15,473.28

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Solution

The fourth proportional to 28,047.72, 38,707.02 and 15,473.28 is: 21,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.72 : 38,707.02 = 15,473.28 : x
  2. Step 2: Convert to fraction form
    28,047.72/38,707.02 = 15,473.28/x
  3. Step 3: Cross multiply
    28,047.72x = 38,707.02 × 15,473.28
  4. Step 4: Simplify right side
    28,047.72x = 598,924,558.43
  5. Step 5: Solve for x
    x = 598,924,558.43/28,047.72
  6. Step 6: Final answer
    x = 21,353.77

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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.