Home / 28,355.34-42,548.67-11,711.50

Finding the Fourth Proportional to 28,355.34, 42,548.67 and 11,711.50

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Solution

The fourth proportional to 28,355.34, 42,548.67 and 11,711.50 is: 17,573.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355.34 : 42,548.67 = 11,711.50 : x
  2. Step 2: Convert to fraction form
    28,355.34/42,548.67 = 11,711.50/x
  3. Step 3: Cross multiply
    28,355.34x = 42,548.67 × 11,711.50
  4. Step 4: Simplify right side
    28,355.34x = 498,308,748.71
  5. Step 5: Solve for x
    x = 498,308,748.71/28,355.34
  6. Step 6: Final answer
    x = 17,573.72

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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.