Home / 30,272.40-45,408.60-15,510.15

Finding the Fourth Proportional to 30,272.40, 45,408.60 and 15,510.15

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Solution

The fourth proportional to 30,272.40, 45,408.60 and 15,510.15 is: 23,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,272.40 : 45,408.60 = 15,510.15 : x
  2. Step 2: Convert to fraction form
    30,272.40/45,408.60 = 15,510.15/x
  3. Step 3: Cross multiply
    30,272.40x = 45,408.60 × 15,510.15
  4. Step 4: Simplify right side
    30,272.40x = 704,294,197.29
  5. Step 5: Solve for x
    x = 704,294,197.29/30,272.40
  6. Step 6: Final answer
    x = 23,265.23

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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.