Home / 38,547.88-57,846.42-21,017.70

Finding the Fourth Proportional to 38,547.88, 57,846.42 and 21,017.70

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Solution

The fourth proportional to 38,547.88, 57,846.42 and 21,017.70 is: 31,539.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,547.88 : 57,846.42 = 21,017.70 : x
  2. Step 2: Convert to fraction form
    38,547.88/57,846.42 = 21,017.70/x
  3. Step 3: Cross multiply
    38,547.88x = 57,846.42 × 21,017.70
  4. Step 4: Simplify right side
    38,547.88x = 1,215,798,701.63
  5. Step 5: Solve for x
    x = 1,215,798,701.63/38,547.88
  6. Step 6: Final answer
    x = 31,539.96

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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.