Home / 38,641.22-53,328.26-21,645.19

Finding the Fourth Proportional to 38,641.22, 53,328.26 and 21,645.19

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Solution

The fourth proportional to 38,641.22, 53,328.26 and 21,645.19 is: 29,872.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.22 : 53,328.26 = 21,645.19 : x
  2. Step 2: Convert to fraction form
    38,641.22/53,328.26 = 21,645.19/x
  3. Step 3: Cross multiply
    38,641.22x = 53,328.26 × 21,645.19
  4. Step 4: Simplify right side
    38,641.22x = 1,154,299,945.20
  5. Step 5: Solve for x
    x = 1,154,299,945.20/38,641.22
  6. Step 6: Final answer
    x = 29,872.25

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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.