Home / 28,569.40-39,425.34-15,994.60

Finding the Fourth Proportional to 28,569.40, 39,425.34 and 15,994.60

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Solution

The fourth proportional to 28,569.40, 39,425.34 and 15,994.60 is: 22,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,569.40 : 39,425.34 = 15,994.60 : x
  2. Step 2: Convert to fraction form
    28,569.40/39,425.34 = 15,994.60/x
  3. Step 3: Cross multiply
    28,569.40x = 39,425.34 × 15,994.60
  4. Step 4: Simplify right side
    28,569.40x = 630,592,543.16
  5. Step 5: Solve for x
    x = 630,592,543.16/28,569.40
  6. Step 6: Final answer
    x = 22,072.31

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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.