Home / 21,916.14-30,268.77-14,830.26

Finding the Fourth Proportional to 21,916.14, 30,268.77 and 14,830.26

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Solution

The fourth proportional to 21,916.14, 30,268.77 and 14,830.26 is: 20,482.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.14 : 30,268.77 = 14,830.26 : x
  2. Step 2: Convert to fraction form
    21,916.14/30,268.77 = 14,830.26/x
  3. Step 3: Cross multiply
    21,916.14x = 30,268.77 × 14,830.26
  4. Step 4: Simplify right side
    21,916.14x = 448,893,728.98
  5. Step 5: Solve for x
    x = 448,893,728.98/21,916.14
  6. Step 6: Final answer
    x = 20,482.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.