Home / 39,368.79-54,329.49-21,464.10

Finding the Fourth Proportional to 39,368.79, 54,329.49 and 21,464.10

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Solution

The fourth proportional to 39,368.79, 54,329.49 and 21,464.10 is: 29,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,368.79 : 54,329.49 = 21,464.10 : x
  2. Step 2: Convert to fraction form
    39,368.79/54,329.49 = 21,464.10/x
  3. Step 3: Cross multiply
    39,368.79x = 54,329.49 × 21,464.10
  4. Step 4: Simplify right side
    39,368.79x = 1,166,133,606.31
  5. Step 5: Solve for x
    x = 1,166,133,606.31/39,368.79
  6. Step 6: Final answer
    x = 29,620.76

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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.