Home / 38,445.08-53,055.74-21,450.80

Finding the Fourth Proportional to 38,445.08, 53,055.74 and 21,450.80

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Solution

The fourth proportional to 38,445.08, 53,055.74 and 21,450.80 is: 29,602.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,445.08 : 53,055.74 = 21,450.80 : x
  2. Step 2: Convert to fraction form
    38,445.08/53,055.74 = 21,450.80/x
  3. Step 3: Cross multiply
    38,445.08x = 53,055.74 × 21,450.80
  4. Step 4: Simplify right side
    38,445.08x = 1,138,088,253.86
  5. Step 5: Solve for x
    x = 1,138,088,253.86/38,445.08
  6. Step 6: Final answer
    x = 29,602.97

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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.