Home / 28,307.88-42,444.95-12,504.92

Finding the Fourth Proportional to 28,307.88, 42,444.95 and 12,504.92

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Solution

The fourth proportional to 28,307.88, 42,444.95 and 12,504.92 is: 18,749.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.88 : 42,444.95 = 12,504.92 : x
  2. Step 2: Convert to fraction form
    28,307.88/42,444.95 = 12,504.92/x
  3. Step 3: Cross multiply
    28,307.88x = 42,444.95 × 12,504.92
  4. Step 4: Simplify right side
    28,307.88x = 530,770,429.40
  5. Step 5: Solve for x
    x = 530,770,429.40/28,307.88
  6. Step 6: Final answer
    x = 18,749.92

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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.