Home / 30,757.16-45,905.65-28,294.76

Finding the Fourth Proportional to 30,757.16, 45,905.65 and 28,294.76

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Solution

The fourth proportional to 30,757.16, 45,905.65 and 28,294.76 is: 42,230.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,757.16 : 45,905.65 = 28,294.76 : x
  2. Step 2: Convert to fraction form
    30,757.16/45,905.65 = 28,294.76/x
  3. Step 3: Cross multiply
    30,757.16x = 45,905.65 × 28,294.76
  4. Step 4: Simplify right side
    30,757.16x = 1,298,889,349.39
  5. Step 5: Solve for x
    x = 1,298,889,349.39/30,757.16
  6. Step 6: Final answer
    x = 42,230.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.