Home / 28,956.05-39,963.53-16,689.07

Finding the Fourth Proportional to 28,956.05, 39,963.53 and 16,689.07

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Solution

The fourth proportional to 28,956.05, 39,963.53 and 16,689.07 is: 23,033.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.05 : 39,963.53 = 16,689.07 : x
  2. Step 2: Convert to fraction form
    28,956.05/39,963.53 = 16,689.07/x
  3. Step 3: Cross multiply
    28,956.05x = 39,963.53 × 16,689.07
  4. Step 4: Simplify right side
    28,956.05x = 666,953,966.26
  5. Step 5: Solve for x
    x = 666,953,966.26/28,956.05
  6. Step 6: Final answer
    x = 23,033.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.