Home / 27,988.12-38,606.25-16,649.94

Finding the Fourth Proportional to 27,988.12, 38,606.25 and 16,649.94

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Solution

The fourth proportional to 27,988.12, 38,606.25 and 16,649.94 is: 22,966.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.12 : 38,606.25 = 16,649.94 : x
  2. Step 2: Convert to fraction form
    27,988.12/38,606.25 = 16,649.94/x
  3. Step 3: Cross multiply
    27,988.12x = 38,606.25 × 16,649.94
  4. Step 4: Simplify right side
    27,988.12x = 642,791,746.13
  5. Step 5: Solve for x
    x = 642,791,746.13/27,988.12
  6. Step 6: Final answer
    x = 22,966.59

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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.