Home / 30,632.14-42,276.93-18,702.42

Finding the Fourth Proportional to 30,632.14, 42,276.93 and 18,702.42

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Solution

The fourth proportional to 30,632.14, 42,276.93 and 18,702.42 is: 25,812.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.14 : 42,276.93 = 18,702.42 : x
  2. Step 2: Convert to fraction form
    30,632.14/42,276.93 = 18,702.42/x
  3. Step 3: Cross multiply
    30,632.14x = 42,276.93 × 18,702.42
  4. Step 4: Simplify right side
    30,632.14x = 790,680,901.17
  5. Step 5: Solve for x
    x = 790,680,901.17/30,632.14
  6. Step 6: Final answer
    x = 25,812.13

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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.