Home / 38,649.02-53,339.94-21,656.03

Finding the Fourth Proportional to 38,649.02, 53,339.94 and 21,656.03

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Solution

The fourth proportional to 38,649.02, 53,339.94 and 21,656.03 is: 29,887.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,649.02 : 53,339.94 = 21,656.03 : x
  2. Step 2: Convert to fraction form
    38,649.02/53,339.94 = 21,656.03/x
  3. Step 3: Cross multiply
    38,649.02x = 53,339.94 × 21,656.03
  4. Step 4: Simplify right side
    38,649.02x = 1,155,131,074.14
  5. Step 5: Solve for x
    x = 1,155,131,074.14/38,649.02
  6. Step 6: Final answer
    x = 29,887.72

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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.