Home / 28,467.54-39,303.50-18,411.40

Finding the Fourth Proportional to 28,467.54, 39,303.50 and 18,411.40

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Solution

The fourth proportional to 28,467.54, 39,303.50 and 18,411.40 is: 25,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,467.54 : 39,303.50 = 18,411.40 : x
  2. Step 2: Convert to fraction form
    28,467.54/39,303.50 = 18,411.40/x
  3. Step 3: Cross multiply
    28,467.54x = 39,303.50 × 18,411.40
  4. Step 4: Simplify right side
    28,467.54x = 723,632,459.90
  5. Step 5: Solve for x
    x = 723,632,459.90/28,467.54
  6. Step 6: Final answer
    x = 25,419.56

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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.