Home / 28,165.52-42,214.57-13,152.38

Finding the Fourth Proportional to 28,165.52, 42,214.57 and 13,152.38

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Solution

The fourth proportional to 28,165.52, 42,214.57 and 13,152.38 is: 19,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.52 : 42,214.57 = 13,152.38 : x
  2. Step 2: Convert to fraction form
    28,165.52/42,214.57 = 13,152.38/x
  3. Step 3: Cross multiply
    28,165.52x = 42,214.57 × 13,152.38
  4. Step 4: Simplify right side
    28,165.52x = 555,221,822.22
  5. Step 5: Solve for x
    x = 555,221,822.22/28,165.52
  6. Step 6: Final answer
    x = 19,712.82

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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.