Home / 39,912.40-59,868.60-13,646.80

Finding the Fourth Proportional to 39,912.40, 59,868.60 and 13,646.80

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Solution

The fourth proportional to 39,912.40, 59,868.60 and 13,646.80 is: 20,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.40 : 59,868.60 = 13,646.80 : x
  2. Step 2: Convert to fraction form
    39,912.40/59,868.60 = 13,646.80/x
  3. Step 3: Cross multiply
    39,912.40x = 59,868.60 × 13,646.80
  4. Step 4: Simplify right side
    39,912.40x = 817,014,810.48
  5. Step 5: Solve for x
    x = 817,014,810.48/39,912.40
  6. Step 6: Final answer
    x = 20,470.20

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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.