Home / 28,527.80-39,355.12-18,459.50

Finding the Fourth Proportional to 28,527.80, 39,355.12 and 18,459.50

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Solution

The fourth proportional to 28,527.80, 39,355.12 and 18,459.50 is: 25,465.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,527.80 : 39,355.12 = 18,459.50 : x
  2. Step 2: Convert to fraction form
    28,527.80/39,355.12 = 18,459.50/x
  3. Step 3: Cross multiply
    28,527.80x = 39,355.12 × 18,459.50
  4. Step 4: Simplify right side
    28,527.80x = 726,475,837.64
  5. Step 5: Solve for x
    x = 726,475,837.64/28,527.80
  6. Step 6: Final answer
    x = 25,465.54

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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.