Home / 21,095.88-29,045.70-18,576.24

Finding the Fourth Proportional to 21,095.88, 29,045.70 and 18,576.24

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Solution

The fourth proportional to 21,095.88, 29,045.70 and 18,576.24 is: 25,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.88 : 29,045.70 = 18,576.24 : x
  2. Step 2: Convert to fraction form
    21,095.88/29,045.70 = 18,576.24/x
  3. Step 3: Cross multiply
    21,095.88x = 29,045.70 × 18,576.24
  4. Step 4: Simplify right side
    21,095.88x = 539,559,894.17
  5. Step 5: Solve for x
    x = 539,559,894.17/21,095.88
  6. Step 6: Final answer
    x = 25,576.55

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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.