Home / 38,118.84-52,603.20-21,122.93

Finding the Fourth Proportional to 38,118.84, 52,603.20 and 21,122.93

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Solution

The fourth proportional to 38,118.84, 52,603.20 and 21,122.93 is: 29,149.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,118.84 : 52,603.20 = 21,122.93 : x
  2. Step 2: Convert to fraction form
    38,118.84/52,603.20 = 21,122.93/x
  3. Step 3: Cross multiply
    38,118.84x = 52,603.20 × 21,122.93
  4. Step 4: Simplify right side
    38,118.84x = 1,111,133,711.38
  5. Step 5: Solve for x
    x = 1,111,133,711.38/38,118.84
  6. Step 6: Final answer
    x = 29,149.20

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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.