Home / 30,918.58-46,368.75-13,149.21

Finding the Fourth Proportional to 30,918.58, 46,368.75 and 13,149.21

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Solution

The fourth proportional to 30,918.58, 46,368.75 and 13,149.21 is: 19,719.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918.58 : 46,368.75 = 13,149.21 : x
  2. Step 2: Convert to fraction form
    30,918.58/46,368.75 = 13,149.21/x
  3. Step 3: Cross multiply
    30,918.58x = 46,368.75 × 13,149.21
  4. Step 4: Simplify right side
    30,918.58x = 609,712,431.19
  5. Step 5: Solve for x
    x = 609,712,431.19/30,918.58
  6. Step 6: Final answer
    x = 19,719.94

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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.