Home / 38,641.56-53,328.73-21,645.53

Finding the Fourth Proportional to 38,641.56, 53,328.73 and 21,645.53

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Solution

The fourth proportional to 38,641.56, 53,328.73 and 21,645.53 is: 29,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,641.56 : 53,328.73 = 21,645.53 : x
  2. Step 2: Convert to fraction form
    38,641.56/53,328.73 = 21,645.53/x
  3. Step 3: Cross multiply
    38,641.56x = 53,328.73 × 21,645.53
  4. Step 4: Simplify right side
    38,641.56x = 1,154,328,544.89
  5. Step 5: Solve for x
    x = 1,154,328,544.89/38,641.56
  6. Step 6: Final answer
    x = 29,872.72

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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.