Home / 28,302.51-42,435.13-15,840.93

Finding the Fourth Proportional to 28,302.51, 42,435.13 and 15,840.93

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Solution

The fourth proportional to 28,302.51, 42,435.13 and 15,840.93 is: 23,750.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.51 : 42,435.13 = 15,840.93 : x
  2. Step 2: Convert to fraction form
    28,302.51/42,435.13 = 15,840.93/x
  3. Step 3: Cross multiply
    28,302.51x = 42,435.13 × 15,840.93
  4. Step 4: Simplify right side
    28,302.51x = 672,211,923.87
  5. Step 5: Solve for x
    x = 672,211,923.87/28,302.51
  6. Step 6: Final answer
    x = 23,750.96

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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.