Home / 39,556.80-59,343.30-13,280.40

Finding the Fourth Proportional to 39,556.80, 59,343.30 and 13,280.40

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Solution

The fourth proportional to 39,556.80, 59,343.30 and 13,280.40 is: 19,923.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.80 : 59,343.30 = 13,280.40 : x
  2. Step 2: Convert to fraction form
    39,556.80/59,343.30 = 13,280.40/x
  3. Step 3: Cross multiply
    39,556.80x = 59,343.30 × 13,280.40
  4. Step 4: Simplify right side
    39,556.80x = 788,102,761.32
  5. Step 5: Solve for x
    x = 788,102,761.32/39,556.80
  6. Step 6: Final answer
    x = 19,923.32

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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.