Home / 39,341.09-54,290.01-21,436.25

Finding the Fourth Proportional to 39,341.09, 54,290.01 and 21,436.25

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Solution

The fourth proportional to 39,341.09, 54,290.01 and 21,436.25 is: 29,581.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,341.09 : 54,290.01 = 21,436.25 : x
  2. Step 2: Convert to fraction form
    39,341.09/54,290.01 = 21,436.25/x
  3. Step 3: Cross multiply
    39,341.09x = 54,290.01 × 21,436.25
  4. Step 4: Simplify right side
    39,341.09x = 1,163,773,955.41
  5. Step 5: Solve for x
    x = 1,163,773,955.41/39,341.09
  6. Step 6: Final answer
    x = 29,581.64

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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.