Home / 39,941.80-59,912.70-13,642.60

Finding the Fourth Proportional to 39,941.80, 59,912.70 and 13,642.60

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Solution

The fourth proportional to 39,941.80, 59,912.70 and 13,642.60 is: 20,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941.80 : 59,912.70 = 13,642.60 : x
  2. Step 2: Convert to fraction form
    39,941.80/59,912.70 = 13,642.60/x
  3. Step 3: Cross multiply
    39,941.80x = 59,912.70 × 13,642.60
  4. Step 4: Simplify right side
    39,941.80x = 817,365,001.02
  5. Step 5: Solve for x
    x = 817,365,001.02/39,941.80
  6. Step 6: Final answer
    x = 20,463.90

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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.