Home / 15,955.12-23,812.07-15,540.40

Finding the Fourth Proportional to 15,955.12, 23,812.07 and 15,540.40

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Solution

The fourth proportional to 15,955.12, 23,812.07 and 15,540.40 is: 23,193.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.12 : 23,812.07 = 15,540.40 : x
  2. Step 2: Convert to fraction form
    15,955.12/23,812.07 = 15,540.40/x
  3. Step 3: Cross multiply
    15,955.12x = 23,812.07 × 15,540.40
  4. Step 4: Simplify right side
    15,955.12x = 370,048,895.87
  5. Step 5: Solve for x
    x = 370,048,895.87/15,955.12
  6. Step 6: Final answer
    x = 23,193.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.