Home / 28,746.90-39,669.75-16,169.22

Finding the Fourth Proportional to 28,746.90, 39,669.75 and 16,169.22

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Solution

The fourth proportional to 28,746.90, 39,669.75 and 16,169.22 is: 22,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.90 : 39,669.75 = 16,169.22 : x
  2. Step 2: Convert to fraction form
    28,746.90/39,669.75 = 16,169.22/x
  3. Step 3: Cross multiply
    28,746.90x = 39,669.75 × 16,169.22
  4. Step 4: Simplify right side
    28,746.90x = 641,428,915.10
  5. Step 5: Solve for x
    x = 641,428,915.10/28,746.90
  6. Step 6: Final answer
    x = 22,312.98

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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.