Home / 28,305.69-42,470.07-14,269.76

Finding the Fourth Proportional to 28,305.69, 42,470.07 and 14,269.76

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Solution

The fourth proportional to 28,305.69, 42,470.07 and 14,269.76 is: 21,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.69 : 42,470.07 = 14,269.76 : x
  2. Step 2: Convert to fraction form
    28,305.69/42,470.07 = 14,269.76/x
  3. Step 3: Cross multiply
    28,305.69x = 42,470.07 × 14,269.76
  4. Step 4: Simplify right side
    28,305.69x = 606,037,838.38
  5. Step 5: Solve for x
    x = 606,037,838.38/28,305.69
  6. Step 6: Final answer
    x = 21,410.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.