Home / 28,666.80-43,012.32-13,886.70

Finding the Fourth Proportional to 28,666.80, 43,012.32 and 13,886.70

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Solution

The fourth proportional to 28,666.80, 43,012.32 and 13,886.70 is: 20,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,666.80 : 43,012.32 = 13,886.70 : x
  2. Step 2: Convert to fraction form
    28,666.80/43,012.32 = 13,886.70/x
  3. Step 3: Cross multiply
    28,666.80x = 43,012.32 × 13,886.70
  4. Step 4: Simplify right side
    28,666.80x = 597,299,184.14
  5. Step 5: Solve for x
    x = 597,299,184.14/28,666.80
  6. Step 6: Final answer
    x = 20,835.92

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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.