Home / 27,735.81-38,271.85-16,985.49

Finding the Fourth Proportional to 27,735.81, 38,271.85 and 16,985.49

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Solution

The fourth proportional to 27,735.81, 38,271.85 and 16,985.49 is: 23,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.81 : 38,271.85 = 16,985.49 : x
  2. Step 2: Convert to fraction form
    27,735.81/38,271.85 = 16,985.49/x
  3. Step 3: Cross multiply
    27,735.81x = 38,271.85 × 16,985.49
  4. Step 4: Simplify right side
    27,735.81x = 650,066,125.46
  5. Step 5: Solve for x
    x = 650,066,125.46/27,735.81
  6. Step 6: Final answer
    x = 23,437.79

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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.