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Finding the Fourth Proportional to 39,482.40, 54,459 and 25,352.40

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Solution

The fourth proportional to 39,482.40, 54,459 and 25,352.40 is: 34,969.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.40 : 54,459 = 25,352.40 : x
  2. Step 2: Convert to fraction form
    39,482.40/54,459 = 25,352.40/x
  3. Step 3: Cross multiply
    39,482.40x = 54,459 × 25,352.40
  4. Step 4: Simplify right side
    39,482.40x = 1,380,666,351.60
  5. Step 5: Solve for x
    x = 1,380,666,351.60/39,482.40
  6. Step 6: Final answer
    x = 34,969.16

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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.