Home / 28,045.09-42,055.35-10,502.61

Finding the Fourth Proportional to 28,045.09, 42,055.35 and 10,502.61

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Solution

The fourth proportional to 28,045.09, 42,055.35 and 10,502.61 is: 15,749.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.09 : 42,055.35 = 10,502.61 : x
  2. Step 2: Convert to fraction form
    28,045.09/42,055.35 = 10,502.61/x
  3. Step 3: Cross multiply
    28,045.09x = 42,055.35 × 10,502.61
  4. Step 4: Simplify right side
    28,045.09x = 441,691,038.01
  5. Step 5: Solve for x
    x = 441,691,038.01/28,045.09
  6. Step 6: Final answer
    x = 15,749.32

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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.