Home / 28,508.36-42,762.53-12,709.31

Finding the Fourth Proportional to 28,508.36, 42,762.53 and 12,709.31

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Solution

The fourth proportional to 28,508.36, 42,762.53 and 12,709.31 is: 19,063.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.36 : 42,762.53 = 12,709.31 : x
  2. Step 2: Convert to fraction form
    28,508.36/42,762.53 = 12,709.31/x
  3. Step 3: Cross multiply
    28,508.36x = 42,762.53 × 12,709.31
  4. Step 4: Simplify right side
    28,508.36x = 543,482,068.11
  5. Step 5: Solve for x
    x = 543,482,068.11/28,508.36
  6. Step 6: Final answer
    x = 19,063.96

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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.