Home / 28,281.92-39,047.04-19,344.32

Finding the Fourth Proportional to 28,281.92, 39,047.04 and 19,344.32

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Solution

The fourth proportional to 28,281.92, 39,047.04 and 19,344.32 is: 26,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.92 : 39,047.04 = 19,344.32 : x
  2. Step 2: Convert to fraction form
    28,281.92/39,047.04 = 19,344.32/x
  3. Step 3: Cross multiply
    28,281.92x = 39,047.04 × 19,344.32
  4. Step 4: Simplify right side
    28,281.92x = 755,338,436.81
  5. Step 5: Solve for x
    x = 755,338,436.81/28,281.92
  6. Step 6: Final answer
    x = 26,707.47

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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.