Home / 39,284.20-54,210.57-21,379.24

Finding the Fourth Proportional to 39,284.20, 54,210.57 and 21,379.24

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Solution

The fourth proportional to 39,284.20, 54,210.57 and 21,379.24 is: 29,502.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,284.20 : 54,210.57 = 21,379.24 : x
  2. Step 2: Convert to fraction form
    39,284.20/54,210.57 = 21,379.24/x
  3. Step 3: Cross multiply
    39,284.20x = 54,210.57 × 21,379.24
  4. Step 4: Simplify right side
    39,284.20x = 1,158,980,515.51
  5. Step 5: Solve for x
    x = 1,158,980,515.51/39,284.20
  6. Step 6: Final answer
    x = 29,502.46

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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.