Home / 27,555.75-38,030.13-15,459.57

Finding the Fourth Proportional to 27,555.75, 38,030.13 and 15,459.57

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Solution

The fourth proportional to 27,555.75, 38,030.13 and 15,459.57 is: 21,336.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.75 : 38,030.13 = 15,459.57 : x
  2. Step 2: Convert to fraction form
    27,555.75/38,030.13 = 15,459.57/x
  3. Step 3: Cross multiply
    27,555.75x = 38,030.13 × 15,459.57
  4. Step 4: Simplify right side
    27,555.75x = 587,929,456.84
  5. Step 5: Solve for x
    x = 587,929,456.84/27,555.75
  6. Step 6: Final answer
    x = 21,336.00

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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.