Home / 25,900.50-35,724.69-15,688.23

Finding the Fourth Proportional to 25,900.50, 35,724.69 and 15,688.23

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Solution

The fourth proportional to 25,900.50, 35,724.69 and 15,688.23 is: 21,638.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,900.50 : 35,724.69 = 15,688.23 : x
  2. Step 2: Convert to fraction form
    25,900.50/35,724.69 = 15,688.23/x
  3. Step 3: Cross multiply
    25,900.50x = 35,724.69 × 15,688.23
  4. Step 4: Simplify right side
    25,900.50x = 560,457,153.40
  5. Step 5: Solve for x
    x = 560,457,153.40/25,900.50
  6. Step 6: Final answer
    x = 21,638.85

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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.