Home / 47,281.61-70,932.95-20,631.90

Finding the Fourth Proportional to 47,281.61, 70,932.95 and 20,631.90

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Solution

The fourth proportional to 47,281.61, 70,932.95 and 20,631.90 is: 30,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,281.61 : 70,932.95 = 20,631.90 : x
  2. Step 2: Convert to fraction form
    47,281.61/70,932.95 = 20,631.90/x
  3. Step 3: Cross multiply
    47,281.61x = 70,932.95 × 20,631.90
  4. Step 4: Simplify right side
    47,281.61x = 1,463,481,427.95
  5. Step 5: Solve for x
    x = 1,463,481,427.95/47,281.61
  6. Step 6: Final answer
    x = 30,952.45

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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.