Home / 31,280.48-46,678.18-28,486.52

Finding the Fourth Proportional to 31,280.48, 46,678.18 and 28,486.52

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Solution

The fourth proportional to 31,280.48, 46,678.18 and 28,486.52 is: 42,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.48 : 46,678.18 = 28,486.52 : x
  2. Step 2: Convert to fraction form
    31,280.48/46,678.18 = 28,486.52/x
  3. Step 3: Cross multiply
    31,280.48x = 46,678.18 × 28,486.52
  4. Step 4: Simplify right side
    31,280.48x = 1,329,698,908.13
  5. Step 5: Solve for x
    x = 1,329,698,908.13/31,280.48
  6. Step 6: Final answer
    x = 42,508.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.