Home / 30,720.42-46,098.56-12,950.00

Finding the Fourth Proportional to 30,720.42, 46,098.56 and 12,950.00

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Solution

The fourth proportional to 30,720.42, 46,098.56 and 12,950.00 is: 19,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.42 : 46,098.56 = 12,950.00 : x
  2. Step 2: Convert to fraction form
    30,720.42/46,098.56 = 12,950.00/x
  3. Step 3: Cross multiply
    30,720.42x = 46,098.56 × 12,950.00
  4. Step 4: Simplify right side
    30,720.42x = 596,976,056.76
  5. Step 5: Solve for x
    x = 596,976,056.76/30,720.42
  6. Step 6: Final answer
    x = 19,432.55

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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.