Home / 30,756.52-46,143.15-9,980.02

Finding the Fourth Proportional to 30,756.52, 46,143.15 and 9,980.02

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Solution

The fourth proportional to 30,756.52, 46,143.15 and 9,980.02 is: 14,972.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,756.52 : 46,143.15 = 9,980.02 : x
  2. Step 2: Convert to fraction form
    30,756.52/46,143.15 = 9,980.02/x
  3. Step 3: Cross multiply
    30,756.52x = 46,143.15 × 9,980.02
  4. Step 4: Simplify right side
    30,756.52x = 460,509,559.86
  5. Step 5: Solve for x
    x = 460,509,559.86/30,756.52
  6. Step 6: Final answer
    x = 14,972.75

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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.