Home / 20,959.12-28,916.53-14,233.08

Finding the Fourth Proportional to 20,959.12, 28,916.53 and 14,233.08

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Solution

The fourth proportional to 20,959.12, 28,916.53 and 14,233.08 is: 19,636.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.12 : 28,916.53 = 14,233.08 : x
  2. Step 2: Convert to fraction form
    20,959.12/28,916.53 = 14,233.08/x
  3. Step 3: Cross multiply
    20,959.12x = 28,916.53 × 14,233.08
  4. Step 4: Simplify right side
    20,959.12x = 411,571,284.81
  5. Step 5: Solve for x
    x = 411,571,284.81/20,959.12
  6. Step 6: Final answer
    x = 19,636.86

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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.