Home / 28,946.16-39,949.20-16,368.48

Finding the Fourth Proportional to 28,946.16, 39,949.20 and 16,368.48

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Solution

The fourth proportional to 28,946.16, 39,949.20 and 16,368.48 is: 22,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.16 : 39,949.20 = 16,368.48 : x
  2. Step 2: Convert to fraction form
    28,946.16/39,949.20 = 16,368.48/x
  3. Step 3: Cross multiply
    28,946.16x = 39,949.20 × 16,368.48
  4. Step 4: Simplify right side
    28,946.16x = 653,907,681.22
  5. Step 5: Solve for x
    x = 653,907,681.22/28,946.16
  6. Step 6: Final answer
    x = 22,590.48

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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.