Home / 30,436.24-42,000.80-17,688.82

Finding the Fourth Proportional to 30,436.24, 42,000.80 and 17,688.82

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Solution

The fourth proportional to 30,436.24, 42,000.80 and 17,688.82 is: 24,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,436.24 : 42,000.80 = 17,688.82 : x
  2. Step 2: Convert to fraction form
    30,436.24/42,000.80 = 17,688.82/x
  3. Step 3: Cross multiply
    30,436.24x = 42,000.80 × 17,688.82
  4. Step 4: Simplify right side
    30,436.24x = 742,944,591.06
  5. Step 5: Solve for x
    x = 742,944,591.06/30,436.24
  6. Step 6: Final answer
    x = 24,409.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.