Home / 28,937.07-43,411.02-13,143.21

Finding the Fourth Proportional to 28,937.07, 43,411.02 and 13,143.21

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Solution

The fourth proportional to 28,937.07, 43,411.02 and 13,143.21 is: 19,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.07 : 43,411.02 = 13,143.21 : x
  2. Step 2: Convert to fraction form
    28,937.07/43,411.02 = 13,143.21/x
  3. Step 3: Cross multiply
    28,937.07x = 43,411.02 × 13,143.21
  4. Step 4: Simplify right side
    28,937.07x = 570,560,152.17
  5. Step 5: Solve for x
    x = 570,560,152.17/28,937.07
  6. Step 6: Final answer
    x = 19,717.27

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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.