Home / 30,367.90-45,515.40-15,569.20

Finding the Fourth Proportional to 30,367.90, 45,515.40 and 15,569.20

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Solution

The fourth proportional to 30,367.90, 45,515.40 and 15,569.20 is: 23,335.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,367.90 : 45,515.40 = 15,569.20 : x
  2. Step 2: Convert to fraction form
    30,367.90/45,515.40 = 15,569.20/x
  3. Step 3: Cross multiply
    30,367.90x = 45,515.40 × 15,569.20
  4. Step 4: Simplify right side
    30,367.90x = 708,638,365.68
  5. Step 5: Solve for x
    x = 708,638,365.68/30,367.90
  6. Step 6: Final answer
    x = 23,335.11

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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.