Home / 28,239.41-42,363.69-9,521.12

Finding the Fourth Proportional to 28,239.41, 42,363.69 and 9,521.12

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Solution

The fourth proportional to 28,239.41, 42,363.69 and 9,521.12 is: 14,283.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.41 : 42,363.69 = 9,521.12 : x
  2. Step 2: Convert to fraction form
    28,239.41/42,363.69 = 9,521.12/x
  3. Step 3: Cross multiply
    28,239.41x = 42,363.69 × 9,521.12
  4. Step 4: Simplify right side
    28,239.41x = 403,349,776.13
  5. Step 5: Solve for x
    x = 403,349,776.13/28,239.41
  6. Step 6: Final answer
    x = 14,283.22

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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.