Home / 26,681.13-39,985.92-20,765.16

Finding the Fourth Proportional to 26,681.13, 39,985.92 and 20,765.16

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Solution

The fourth proportional to 26,681.13, 39,985.92 and 20,765.16 is: 31,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,681.13 : 39,985.92 = 20,765.16 : x
  2. Step 2: Convert to fraction form
    26,681.13/39,985.92 = 20,765.16/x
  3. Step 3: Cross multiply
    26,681.13x = 39,985.92 × 20,765.16
  4. Step 4: Simplify right side
    26,681.13x = 830,314,026.55
  5. Step 5: Solve for x
    x = 830,314,026.55/26,681.13
  6. Step 6: Final answer
    x = 31,119.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.