Home / 27,316.89-37,698.02-15,380.66

Finding the Fourth Proportional to 27,316.89, 37,698.02 and 15,380.66

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Solution

The fourth proportional to 27,316.89, 37,698.02 and 15,380.66 is: 21,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,316.89 : 37,698.02 = 15,380.66 : x
  2. Step 2: Convert to fraction form
    27,316.89/37,698.02 = 15,380.66/x
  3. Step 3: Cross multiply
    27,316.89x = 37,698.02 × 15,380.66
  4. Step 4: Simplify right side
    27,316.89x = 579,820,162.90
  5. Step 5: Solve for x
    x = 579,820,162.90/27,316.89
  6. Step 6: Final answer
    x = 21,225.70

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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.