Home / 28,307.40-42,435.96-14,249.04

Finding the Fourth Proportional to 28,307.40, 42,435.96 and 14,249.04

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Solution

The fourth proportional to 28,307.40, 42,435.96 and 14,249.04 is: 21,360.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.40 : 42,435.96 = 14,249.04 : x
  2. Step 2: Convert to fraction form
    28,307.40/42,435.96 = 14,249.04/x
  3. Step 3: Cross multiply
    28,307.40x = 42,435.96 × 14,249.04
  4. Step 4: Simplify right side
    28,307.40x = 604,671,691.48
  5. Step 5: Solve for x
    x = 604,671,691.48/28,307.40
  6. Step 6: Final answer
    x = 21,360.91

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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.