Home / 28,030.66-42,017.64-18,176.20

Finding the Fourth Proportional to 28,030.66, 42,017.64 and 18,176.20

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Solution

The fourth proportional to 28,030.66, 42,017.64 and 18,176.20 is: 27,245.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.66 : 42,017.64 = 18,176.20 : x
  2. Step 2: Convert to fraction form
    28,030.66/42,017.64 = 18,176.20/x
  3. Step 3: Cross multiply
    28,030.66x = 42,017.64 × 18,176.20
  4. Step 4: Simplify right side
    28,030.66x = 763,721,028.17
  5. Step 5: Solve for x
    x = 763,721,028.17/28,030.66
  6. Step 6: Final answer
    x = 27,245.92

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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.