Home / 26,291.02-39,421.35-17,981.11

Finding the Fourth Proportional to 26,291.02, 39,421.35 and 17,981.11

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Solution

The fourth proportional to 26,291.02, 39,421.35 and 17,981.11 is: 26,961.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.02 : 39,421.35 = 17,981.11 : x
  2. Step 2: Convert to fraction form
    26,291.02/39,421.35 = 17,981.11/x
  3. Step 3: Cross multiply
    26,291.02x = 39,421.35 × 17,981.11
  4. Step 4: Simplify right side
    26,291.02x = 708,839,630.70
  5. Step 5: Solve for x
    x = 708,839,630.70/26,291.02
  6. Step 6: Final answer
    x = 26,961.28

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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.