Home / 30,720.58-46,095.72-14,939.08

Finding the Fourth Proportional to 30,720.58, 46,095.72 and 14,939.08

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Solution

The fourth proportional to 30,720.58, 46,095.72 and 14,939.08 is: 22,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.58 : 46,095.72 = 14,939.08 : x
  2. Step 2: Convert to fraction form
    30,720.58/46,095.72 = 14,939.08/x
  3. Step 3: Cross multiply
    30,720.58x = 46,095.72 × 14,939.08
  4. Step 4: Simplify right side
    30,720.58x = 688,627,648.74
  5. Step 5: Solve for x
    x = 688,627,648.74/30,720.58
  6. Step 6: Final answer
    x = 22,415.84

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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.