Home / 27,315.90-37,699.54-15,381.58

Finding the Fourth Proportional to 27,315.90, 37,699.54 and 15,381.58

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Solution

The fourth proportional to 27,315.90, 37,699.54 and 15,381.58 is: 21,228.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,315.90 : 37,699.54 = 15,381.58 : x
  2. Step 2: Convert to fraction form
    27,315.90/37,699.54 = 15,381.58/x
  3. Step 3: Cross multiply
    27,315.90x = 37,699.54 × 15,381.58
  4. Step 4: Simplify right side
    27,315.90x = 579,878,490.47
  5. Step 5: Solve for x
    x = 579,878,490.47/27,315.90
  6. Step 6: Final answer
    x = 21,228.61

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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.