Home / 28,989.63-43,500.86-12,347.94

Finding the Fourth Proportional to 28,989.63, 43,500.86 and 12,347.94

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Solution

The fourth proportional to 28,989.63, 43,500.86 and 12,347.94 is: 18,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.63 : 43,500.86 = 12,347.94 : x
  2. Step 2: Convert to fraction form
    28,989.63/43,500.86 = 12,347.94/x
  3. Step 3: Cross multiply
    28,989.63x = 43,500.86 × 12,347.94
  4. Step 4: Simplify right side
    28,989.63x = 537,146,009.23
  5. Step 5: Solve for x
    x = 537,146,009.23/28,989.63
  6. Step 6: Final answer
    x = 18,528.90

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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.