Home / 30,122.60-45,184.35-7,938.23

Finding the Fourth Proportional to 30,122.60, 45,184.35 and 7,938.23

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Solution

The fourth proportional to 30,122.60, 45,184.35 and 7,938.23 is: 11,907.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,122.60 : 45,184.35 = 7,938.23 : x
  2. Step 2: Convert to fraction form
    30,122.60/45,184.35 = 7,938.23/x
  3. Step 3: Cross multiply
    30,122.60x = 45,184.35 × 7,938.23
  4. Step 4: Simplify right side
    30,122.60x = 358,683,536.78
  5. Step 5: Solve for x
    x = 358,683,536.78/30,122.60
  6. Step 6: Final answer
    x = 11,907.46

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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.