Home / 20,869.84-31,294.54-10,327.69

Finding the Fourth Proportional to 20,869.84, 31,294.54 and 10,327.69

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Solution

The fourth proportional to 20,869.84, 31,294.54 and 10,327.69 is: 15,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,869.84 : 31,294.54 = 10,327.69 : x
  2. Step 2: Convert to fraction form
    20,869.84/31,294.54 = 10,327.69/x
  3. Step 3: Cross multiply
    20,869.84x = 31,294.54 × 10,327.69
  4. Step 4: Simplify right side
    20,869.84x = 323,200,307.81
  5. Step 5: Solve for x
    x = 323,200,307.81/20,869.84
  6. Step 6: Final answer
    x = 15,486.48

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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.