Home / 28,532.14-39,379.80-19,117.12

Finding the Fourth Proportional to 28,532.14, 39,379.80 and 19,117.12

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Solution

The fourth proportional to 28,532.14, 39,379.80 and 19,117.12 is: 26,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.14 : 39,379.80 = 19,117.12 : x
  2. Step 2: Convert to fraction form
    28,532.14/39,379.80 = 19,117.12/x
  3. Step 3: Cross multiply
    28,532.14x = 39,379.80 × 19,117.12
  4. Step 4: Simplify right side
    28,532.14x = 752,828,362.18
  5. Step 5: Solve for x
    x = 752,828,362.18/28,532.14
  6. Step 6: Final answer
    x = 26,385.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.