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Finding the Fourth Proportional to 28,598.96, 42,900.93 and 7,538.86

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Solution

The fourth proportional to 28,598.96, 42,900.93 and 7,538.86 is: 11,308.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,598.96 : 42,900.93 = 7,538.86 : x
  2. Step 2: Convert to fraction form
    28,598.96/42,900.93 = 7,538.86/x
  3. Step 3: Cross multiply
    28,598.96x = 42,900.93 × 7,538.86
  4. Step 4: Simplify right side
    28,598.96x = 323,424,158.77
  5. Step 5: Solve for x
    x = 323,424,158.77/28,598.96
  6. Step 6: Final answer
    x = 11,308.95

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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.