Home / 30,929.48-46,371.50-9,857.40

Finding the Fourth Proportional to 30,929.48, 46,371.50 and 9,857.40

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Solution

The fourth proportional to 30,929.48, 46,371.50 and 9,857.40 is: 14,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,929.48 : 46,371.50 = 9,857.40 : x
  2. Step 2: Convert to fraction form
    30,929.48/46,371.50 = 9,857.40/x
  3. Step 3: Cross multiply
    30,929.48x = 46,371.50 × 9,857.40
  4. Step 4: Simplify right side
    30,929.48x = 457,102,192.24
  5. Step 5: Solve for x
    x = 457,102,192.24/30,929.48
  6. Step 6: Final answer
    x = 14,778.85

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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.