Home / 28,573.31-39,430.73-15,826.41

Finding the Fourth Proportional to 28,573.31, 39,430.73 and 15,826.41

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Solution

The fourth proportional to 28,573.31, 39,430.73 and 15,826.41 is: 21,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.31 : 39,430.73 = 15,826.41 : x
  2. Step 2: Convert to fraction form
    28,573.31/39,430.73 = 15,826.41/x
  3. Step 3: Cross multiply
    28,573.31x = 39,430.73 × 15,826.41
  4. Step 4: Simplify right side
    28,573.31x = 624,046,939.15
  5. Step 5: Solve for x
    x = 624,046,939.15/28,573.31
  6. Step 6: Final answer
    x = 21,840.20

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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.