Home / 31,317.30-46,935.63-13,782.58

Finding the Fourth Proportional to 31,317.30, 46,935.63 and 13,782.58

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Solution

The fourth proportional to 31,317.30, 46,935.63 and 13,782.58 is: 20,656.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,317.30 : 46,935.63 = 13,782.58 : x
  2. Step 2: Convert to fraction form
    31,317.30/46,935.63 = 13,782.58/x
  3. Step 3: Cross multiply
    31,317.30x = 46,935.63 × 13,782.58
  4. Step 4: Simplify right side
    31,317.30x = 646,894,075.33
  5. Step 5: Solve for x
    x = 646,894,075.33/31,317.30
  6. Step 6: Final answer
    x = 20,656.13

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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.