Home / 31,268.54-46,916.12-20,742.22

Finding the Fourth Proportional to 31,268.54, 46,916.12 and 20,742.22

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Solution

The fourth proportional to 31,268.54, 46,916.12 and 20,742.22 is: 31,122.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,268.54 : 46,916.12 = 20,742.22 : x
  2. Step 2: Convert to fraction form
    31,268.54/46,916.12 = 20,742.22/x
  3. Step 3: Cross multiply
    31,268.54x = 46,916.12 × 20,742.22
  4. Step 4: Simplify right side
    31,268.54x = 973,144,482.59
  5. Step 5: Solve for x
    x = 973,144,482.59/31,268.54
  6. Step 6: Final answer
    x = 31,122.16

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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.