Home / 20,537.46-28,322.73-12,970.62

Finding the Fourth Proportional to 20,537.46, 28,322.73 and 12,970.62

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Solution

The fourth proportional to 20,537.46, 28,322.73 and 12,970.62 is: 17,887.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.46 : 28,322.73 = 12,970.62 : x
  2. Step 2: Convert to fraction form
    20,537.46/28,322.73 = 12,970.62/x
  3. Step 3: Cross multiply
    20,537.46x = 28,322.73 × 12,970.62
  4. Step 4: Simplify right side
    20,537.46x = 367,363,368.19
  5. Step 5: Solve for x
    x = 367,363,368.19/20,537.46
  6. Step 6: Final answer
    x = 17,887.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.