Home / 25,861.64-35,685.69-15,247.40

Finding the Fourth Proportional to 25,861.64, 35,685.69 and 15,247.40

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Solution

The fourth proportional to 25,861.64, 35,685.69 and 15,247.40 is: 21,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.64 : 35,685.69 = 15,247.40 : x
  2. Step 2: Convert to fraction form
    25,861.64/35,685.69 = 15,247.40/x
  3. Step 3: Cross multiply
    25,861.64x = 35,685.69 × 15,247.40
  4. Step 4: Simplify right side
    25,861.64x = 544,113,989.71
  5. Step 5: Solve for x
    x = 544,113,989.71/25,861.64
  6. Step 6: Final answer
    x = 21,039.42

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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.