Home / 35,489.10-48,950.40-28,775.01

Finding the Fourth Proportional to 35,489.10, 48,950.40 and 28,775.01

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Solution

The fourth proportional to 35,489.10, 48,950.40 and 28,775.01 is: 39,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,489.10 : 48,950.40 = 28,775.01 : x
  2. Step 2: Convert to fraction form
    35,489.10/48,950.40 = 28,775.01/x
  3. Step 3: Cross multiply
    35,489.10x = 48,950.40 × 28,775.01
  4. Step 4: Simplify right side
    35,489.10x = 1,408,548,249.50
  5. Step 5: Solve for x
    x = 1,408,548,249.50/35,489.10
  6. Step 6: Final answer
    x = 39,689.60

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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.