Home / 38,506.08-53,132.40-21,738.72

Finding the Fourth Proportional to 38,506.08, 53,132.40 and 21,738.72

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Solution

The fourth proportional to 38,506.08, 53,132.40 and 21,738.72 is: 29,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,506.08 : 53,132.40 = 21,738.72 : x
  2. Step 2: Convert to fraction form
    38,506.08/53,132.40 = 21,738.72/x
  3. Step 3: Cross multiply
    38,506.08x = 53,132.40 × 21,738.72
  4. Step 4: Simplify right side
    38,506.08x = 1,155,030,366.53
  5. Step 5: Solve for x
    x = 1,155,030,366.53/38,506.08
  6. Step 6: Final answer
    x = 29,996.05

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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.