Home / 28,360.86-39,133.71-16,425.36

Finding the Fourth Proportional to 28,360.86, 39,133.71 and 16,425.36

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Solution

The fourth proportional to 28,360.86, 39,133.71 and 16,425.36 is: 22,664.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.86 : 39,133.71 = 16,425.36 : x
  2. Step 2: Convert to fraction form
    28,360.86/39,133.71 = 16,425.36/x
  3. Step 3: Cross multiply
    28,360.86x = 39,133.71 × 16,425.36
  4. Step 4: Simplify right side
    28,360.86x = 642,785,274.89
  5. Step 5: Solve for x
    x = 642,785,274.89/28,360.86
  6. Step 6: Final answer
    x = 22,664.52

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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.