Home / 28,949.55-43,426.35-12,307.70

Finding the Fourth Proportional to 28,949.55, 43,426.35 and 12,307.70

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Solution

The fourth proportional to 28,949.55, 43,426.35 and 12,307.70 is: 18,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.55 : 43,426.35 = 12,307.70 : x
  2. Step 2: Convert to fraction form
    28,949.55/43,426.35 = 12,307.70/x
  3. Step 3: Cross multiply
    28,949.55x = 43,426.35 × 12,307.70
  4. Step 4: Simplify right side
    28,949.55x = 534,478,270.76
  5. Step 5: Solve for x
    x = 534,478,270.76/28,949.55
  6. Step 6: Final answer
    x = 18,462.40

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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.