Home / 28,951.12-43,393.74-12,300.76

Finding the Fourth Proportional to 28,951.12, 43,393.74 and 12,300.76

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Solution

The fourth proportional to 28,951.12, 43,393.74 and 12,300.76 is: 18,437.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,951.12 : 43,393.74 = 12,300.76 : x
  2. Step 2: Convert to fraction form
    28,951.12/43,393.74 = 12,300.76/x
  3. Step 3: Cross multiply
    28,951.12x = 43,393.74 × 12,300.76
  4. Step 4: Simplify right side
    28,951.12x = 533,775,981.24
  5. Step 5: Solve for x
    x = 533,775,981.24/28,951.12
  6. Step 6: Final answer
    x = 18,437.14

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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.