Home / 28,601.40-42,902.10-8,881.95

Finding the Fourth Proportional to 28,601.40, 42,902.10 and 8,881.95

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Solution

The fourth proportional to 28,601.40, 42,902.10 and 8,881.95 is: 13,322.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,601.40 : 42,902.10 = 8,881.95 : x
  2. Step 2: Convert to fraction form
    28,601.40/42,902.10 = 8,881.95/x
  3. Step 3: Cross multiply
    28,601.40x = 42,902.10 × 8,881.95
  4. Step 4: Simplify right side
    28,601.40x = 381,054,307.10
  5. Step 5: Solve for x
    x = 381,054,307.10/28,601.40
  6. Step 6: Final answer
    x = 13,322.93

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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.