Home / 39,341.64-54,292.08-21,436.64

Finding the Fourth Proportional to 39,341.64, 54,292.08 and 21,436.64

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Solution

The fourth proportional to 39,341.64, 54,292.08 and 21,436.64 is: 29,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.64 : 54,292.08 = 21,436.64 : x
  2. Step 2: Convert to fraction form
    39,341.64/54,292.08 = 21,436.64/x
  3. Step 3: Cross multiply
    39,341.64x = 54,292.08 × 21,436.64
  4. Step 4: Simplify right side
    39,341.64x = 1,163,839,773.81
  5. Step 5: Solve for x
    x = 1,163,839,773.81/39,341.64
  6. Step 6: Final answer
    x = 29,582.90

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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.