Home / 28,749.79-43,076.76-10,019.50

Finding the Fourth Proportional to 28,749.79, 43,076.76 and 10,019.50

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Solution

The fourth proportional to 28,749.79, 43,076.76 and 10,019.50 is: 15,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.79 : 43,076.76 = 10,019.50 : x
  2. Step 2: Convert to fraction form
    28,749.79/43,076.76 = 10,019.50/x
  3. Step 3: Cross multiply
    28,749.79x = 43,076.76 × 10,019.50
  4. Step 4: Simplify right side
    28,749.79x = 431,607,507.91
  5. Step 5: Solve for x
    x = 431,607,507.91/28,749.79
  6. Step 6: Final answer
    x = 15,012.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.