Home / 28,573.80-39,430.71-15,998.28

Finding the Fourth Proportional to 28,573.80, 39,430.71 and 15,998.28

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Solution

The fourth proportional to 28,573.80, 39,430.71 and 15,998.28 is: 22,076.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.80 : 39,430.71 = 15,998.28 : x
  2. Step 2: Convert to fraction form
    28,573.80/39,430.71 = 15,998.28/x
  3. Step 3: Cross multiply
    28,573.80x = 39,430.71 × 15,998.28
  4. Step 4: Simplify right side
    28,573.80x = 630,823,539.18
  5. Step 5: Solve for x
    x = 630,823,539.18/28,573.80
  6. Step 6: Final answer
    x = 22,076.99

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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.