Home / 28,875.75-43,330.91-12,459.75

Finding the Fourth Proportional to 28,875.75, 43,330.91 and 12,459.75

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Solution

The fourth proportional to 28,875.75, 43,330.91 and 12,459.75 is: 18,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.75 : 43,330.91 = 12,459.75 : x
  2. Step 2: Convert to fraction form
    28,875.75/43,330.91 = 12,459.75/x
  3. Step 3: Cross multiply
    28,875.75x = 43,330.91 × 12,459.75
  4. Step 4: Simplify right side
    28,875.75x = 539,892,243.57
  5. Step 5: Solve for x
    x = 539,892,243.57/28,875.75
  6. Step 6: Final answer
    x = 18,697.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.