Home / 30,485.73-42,071.06-17,056.87

Finding the Fourth Proportional to 30,485.73, 42,071.06 and 17,056.87

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Solution

The fourth proportional to 30,485.73, 42,071.06 and 17,056.87 is: 23,538.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,485.73 : 42,071.06 = 17,056.87 : x
  2. Step 2: Convert to fraction form
    30,485.73/42,071.06 = 17,056.87/x
  3. Step 3: Cross multiply
    30,485.73x = 42,071.06 × 17,056.87
  4. Step 4: Simplify right side
    30,485.73x = 717,600,601.18
  5. Step 5: Solve for x
    x = 717,600,601.18/30,485.73
  6. Step 6: Final answer
    x = 23,538.90

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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.