Home / 28,637.30-42,934.35-18,779.06

Finding the Fourth Proportional to 28,637.30, 42,934.35 and 18,779.06

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Solution

The fourth proportional to 28,637.30, 42,934.35 and 18,779.06 is: 28,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.30 : 42,934.35 = 18,779.06 : x
  2. Step 2: Convert to fraction form
    28,637.30/42,934.35 = 18,779.06/x
  3. Step 3: Cross multiply
    28,637.30x = 42,934.35 × 18,779.06
  4. Step 4: Simplify right side
    28,637.30x = 806,266,912.47
  5. Step 5: Solve for x
    x = 806,266,912.47/28,637.30
  6. Step 6: Final answer
    x = 28,154.43

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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.