Home / 38,386.73-52,975.32-21,390.99

Finding the Fourth Proportional to 38,386.73, 52,975.32 and 21,390.99

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Solution

The fourth proportional to 38,386.73, 52,975.32 and 21,390.99 is: 29,520.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,386.73 : 52,975.32 = 21,390.99 : x
  2. Step 2: Convert to fraction form
    38,386.73/52,975.32 = 21,390.99/x
  3. Step 3: Cross multiply
    38,386.73x = 52,975.32 × 21,390.99
  4. Step 4: Simplify right side
    38,386.73x = 1,133,194,261.49
  5. Step 5: Solve for x
    x = 1,133,194,261.49/38,386.73
  6. Step 6: Final answer
    x = 29,520.47

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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.