Home / 28,039.57-38,674.77-17,970.86

Finding the Fourth Proportional to 28,039.57, 38,674.77 and 17,970.86

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Solution

The fourth proportional to 28,039.57, 38,674.77 and 17,970.86 is: 24,787.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.57 : 38,674.77 = 17,970.86 : x
  2. Step 2: Convert to fraction form
    28,039.57/38,674.77 = 17,970.86/x
  3. Step 3: Cross multiply
    28,039.57x = 38,674.77 × 17,970.86
  4. Step 4: Simplify right side
    28,039.57x = 695,018,906.50
  5. Step 5: Solve for x
    x = 695,018,906.50/28,039.57
  6. Step 6: Final answer
    x = 24,787.08

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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.