Home / 28,510.07-42,783.46-15,371.60

Finding the Fourth Proportional to 28,510.07, 42,783.46 and 15,371.60

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Solution

The fourth proportional to 28,510.07, 42,783.46 and 15,371.60 is: 23,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.07 : 42,783.46 = 15,371.60 : x
  2. Step 2: Convert to fraction form
    28,510.07/42,783.46 = 15,371.60/x
  3. Step 3: Cross multiply
    28,510.07x = 42,783.46 × 15,371.60
  4. Step 4: Simplify right side
    28,510.07x = 657,649,981.39
  5. Step 5: Solve for x
    x = 657,649,981.39/28,510.07
  6. Step 6: Final answer
    x = 23,067.29

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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.