Home / 30,417.12-45,651.60-17,918.82

Finding the Fourth Proportional to 30,417.12, 45,651.60 and 17,918.82

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Solution

The fourth proportional to 30,417.12, 45,651.60 and 17,918.82 is: 26,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.12 : 45,651.60 = 17,918.82 : x
  2. Step 2: Convert to fraction form
    30,417.12/45,651.60 = 17,918.82/x
  3. Step 3: Cross multiply
    30,417.12x = 45,651.60 × 17,918.82
  4. Step 4: Simplify right side
    30,417.12x = 818,022,803.11
  5. Step 5: Solve for x
    x = 818,022,803.11/30,417.12
  6. Step 6: Final answer
    x = 26,893.50

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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.