Home / 20,896.34-31,328.08-14,302.53

Finding the Fourth Proportional to 20,896.34, 31,328.08 and 14,302.53

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Solution

The fourth proportional to 20,896.34, 31,328.08 and 14,302.53 is: 21,442.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.34 : 31,328.08 = 14,302.53 : x
  2. Step 2: Convert to fraction form
    20,896.34/31,328.08 = 14,302.53/x
  3. Step 3: Cross multiply
    20,896.34x = 31,328.08 × 14,302.53
  4. Step 4: Simplify right side
    20,896.34x = 448,070,768.29
  5. Step 5: Solve for x
    x = 448,070,768.29/20,896.34
  6. Step 6: Final answer
    x = 21,442.55

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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.