Home / 28,360.62-42,547.32-9,385.20

Finding the Fourth Proportional to 28,360.62, 42,547.32 and 9,385.20

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Solution

The fourth proportional to 28,360.62, 42,547.32 and 9,385.20 is: 14,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.62 : 42,547.32 = 9,385.20 : x
  2. Step 2: Convert to fraction form
    28,360.62/42,547.32 = 9,385.20/x
  3. Step 3: Cross multiply
    28,360.62x = 42,547.32 × 9,385.20
  4. Step 4: Simplify right side
    28,360.62x = 399,315,107.66
  5. Step 5: Solve for x
    x = 399,315,107.66/28,360.62
  6. Step 6: Final answer
    x = 14,079.91

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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.