Home / 21,458.48-29,613.47-12,504.53

Finding the Fourth Proportional to 21,458.48, 29,613.47 and 12,504.53

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Solution

The fourth proportional to 21,458.48, 29,613.47 and 12,504.53 is: 17,256.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.48 : 29,613.47 = 12,504.53 : x
  2. Step 2: Convert to fraction form
    21,458.48/29,613.47 = 12,504.53/x
  3. Step 3: Cross multiply
    21,458.48x = 29,613.47 × 12,504.53
  4. Step 4: Simplify right side
    21,458.48x = 370,302,535.53
  5. Step 5: Solve for x
    x = 370,302,535.53/21,458.48
  6. Step 6: Final answer
    x = 17,256.70

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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.