Home / 38,515.22-53,151.08-21,748.22

Finding the Fourth Proportional to 38,515.22, 53,151.08 and 21,748.22

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Solution

The fourth proportional to 38,515.22, 53,151.08 and 21,748.22 is: 30,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.22 : 53,151.08 = 21,748.22 : x
  2. Step 2: Convert to fraction form
    38,515.22/53,151.08 = 21,748.22/x
  3. Step 3: Cross multiply
    38,515.22x = 53,151.08 × 21,748.22
  4. Step 4: Simplify right side
    38,515.22x = 1,155,941,381.08
  5. Step 5: Solve for x
    x = 1,155,941,381.08/38,515.22
  6. Step 6: Final answer
    x = 30,012.59

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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.