Home / 28,721.52-39,594.16-19,014.72

Finding the Fourth Proportional to 28,721.52, 39,594.16 and 19,014.72

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Solution

The fourth proportional to 28,721.52, 39,594.16 and 19,014.72 is: 26,212.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.52 : 39,594.16 = 19,014.72 : x
  2. Step 2: Convert to fraction form
    28,721.52/39,594.16 = 19,014.72/x
  3. Step 3: Cross multiply
    28,721.52x = 39,594.16 × 19,014.72
  4. Step 4: Simplify right side
    28,721.52x = 752,871,866.04
  5. Step 5: Solve for x
    x = 752,871,866.04/28,721.52
  6. Step 6: Final answer
    x = 26,212.81

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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.