Home / 39,303.99-54,240.48-21,399.98

Finding the Fourth Proportional to 39,303.99, 54,240.48 and 21,399.98

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Solution

The fourth proportional to 39,303.99, 54,240.48 and 21,399.98 is: 29,532.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,303.99 : 54,240.48 = 21,399.98 : x
  2. Step 2: Convert to fraction form
    39,303.99/54,240.48 = 21,399.98/x
  3. Step 3: Cross multiply
    39,303.99x = 54,240.48 × 21,399.98
  4. Step 4: Simplify right side
    39,303.99x = 1,160,745,187.19
  5. Step 5: Solve for x
    x = 1,160,745,187.19/39,303.99
  6. Step 6: Final answer
    x = 29,532.50

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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.