Home / 39,912.75-59,870.95-12,897.23

Finding the Fourth Proportional to 39,912.75, 59,870.95 and 12,897.23

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Solution

The fourth proportional to 39,912.75, 59,870.95 and 12,897.23 is: 19,346.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.75 : 59,870.95 = 12,897.23 : x
  2. Step 2: Convert to fraction form
    39,912.75/59,870.95 = 12,897.23/x
  3. Step 3: Cross multiply
    39,912.75x = 59,870.95 × 12,897.23
  4. Step 4: Simplify right side
    39,912.75x = 772,169,080.87
  5. Step 5: Solve for x
    x = 772,169,080.87/39,912.75
  6. Step 6: Final answer
    x = 19,346.43

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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.