Home / 28,123.74-42,185.70-10,588.86

Finding the Fourth Proportional to 28,123.74, 42,185.70 and 10,588.86

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Solution

The fourth proportional to 28,123.74, 42,185.70 and 10,588.86 is: 15,883.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.74 : 42,185.70 = 10,588.86 : x
  2. Step 2: Convert to fraction form
    28,123.74/42,185.70 = 10,588.86/x
  3. Step 3: Cross multiply
    28,123.74x = 42,185.70 × 10,588.86
  4. Step 4: Simplify right side
    28,123.74x = 446,698,471.30
  5. Step 5: Solve for x
    x = 446,698,471.30/28,123.74
  6. Step 6: Final answer
    x = 15,883.32

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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.