Home / 28,510.90-39,351.29-16,581.12

Finding the Fourth Proportional to 28,510.90, 39,351.29 and 16,581.12

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Solution

The fourth proportional to 28,510.90, 39,351.29 and 16,581.12 is: 22,885.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.90 : 39,351.29 = 16,581.12 : x
  2. Step 2: Convert to fraction form
    28,510.90/39,351.29 = 16,581.12/x
  3. Step 3: Cross multiply
    28,510.90x = 39,351.29 × 16,581.12
  4. Step 4: Simplify right side
    28,510.90x = 652,488,461.64
  5. Step 5: Solve for x
    x = 652,488,461.64/28,510.90
  6. Step 6: Final answer
    x = 22,885.58

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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.