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Finding the Fourth Proportional to 25,673.84, 35,430 and 15,063.68

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Solution

The fourth proportional to 25,673.84, 35,430 and 15,063.68 is: 20,787.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,673.84 : 35,430 = 15,063.68 : x
  2. Step 2: Convert to fraction form
    25,673.84/35,430 = 15,063.68/x
  3. Step 3: Cross multiply
    25,673.84x = 35,430 × 15,063.68
  4. Step 4: Simplify right side
    25,673.84x = 533,706,182.40
  5. Step 5: Solve for x
    x = 533,706,182.40/25,673.84
  6. Step 6: Final answer
    x = 20,787.94

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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.