Home / 38,509.23-53,142.93-21,514.19

Finding the Fourth Proportional to 38,509.23, 53,142.93 and 21,514.19

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Solution

The fourth proportional to 38,509.23, 53,142.93 and 21,514.19 is: 29,689.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,509.23 : 53,142.93 = 21,514.19 : x
  2. Step 2: Convert to fraction form
    38,509.23/53,142.93 = 21,514.19/x
  3. Step 3: Cross multiply
    38,509.23x = 53,142.93 × 21,514.19
  4. Step 4: Simplify right side
    38,509.23x = 1,143,326,827.46
  5. Step 5: Solve for x
    x = 1,143,326,827.46/38,509.23
  6. Step 6: Final answer
    x = 29,689.68

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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.