Home / 40,984.81-61,436.18-15,990.47

Finding the Fourth Proportional to 40,984.81, 61,436.18 and 15,990.47

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Solution

The fourth proportional to 40,984.81, 61,436.18 and 15,990.47 is: 23,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,984.81 : 61,436.18 = 15,990.47 : x
  2. Step 2: Convert to fraction form
    40,984.81/61,436.18 = 15,990.47/x
  3. Step 3: Cross multiply
    40,984.81x = 61,436.18 × 15,990.47
  4. Step 4: Simplify right side
    40,984.81x = 982,393,603.60
  5. Step 5: Solve for x
    x = 982,393,603.60/40,984.81
  6. Step 6: Final answer
    x = 23,969.70

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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.