Home / 46,419.64-69,629.84-13,140.80

Finding the Fourth Proportional to 46,419.64, 69,629.84 and 13,140.80

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Solution

The fourth proportional to 46,419.64, 69,629.84 and 13,140.80 is: 19,711.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,419.64 : 69,629.84 = 13,140.80 : x
  2. Step 2: Convert to fraction form
    46,419.64/69,629.84 = 13,140.80/x
  3. Step 3: Cross multiply
    46,419.64x = 69,629.84 × 13,140.80
  4. Step 4: Simplify right side
    46,419.64x = 914,991,801.47
  5. Step 5: Solve for x
    x = 914,991,801.47/46,419.64
  6. Step 6: Final answer
    x = 19,711.31

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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.