Home / 28,386.12-42,578.94-9,668.07

Finding the Fourth Proportional to 28,386.12, 42,578.94 and 9,668.07

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Solution

The fourth proportional to 28,386.12, 42,578.94 and 9,668.07 is: 14,502.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.12 : 42,578.94 = 9,668.07 : x
  2. Step 2: Convert to fraction form
    28,386.12/42,578.94 = 9,668.07/x
  3. Step 3: Cross multiply
    28,386.12x = 42,578.94 × 9,668.07
  4. Step 4: Simplify right side
    28,386.12x = 411,656,172.45
  5. Step 5: Solve for x
    x = 411,656,172.45/28,386.12
  6. Step 6: Final answer
    x = 14,502.02

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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.