Home / 31,966.72-47,953.28-9,779.84

Finding the Fourth Proportional to 31,966.72, 47,953.28 and 9,779.84

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Solution

The fourth proportional to 31,966.72, 47,953.28 and 9,779.84 is: 14,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,966.72 : 47,953.28 = 9,779.84 : x
  2. Step 2: Convert to fraction form
    31,966.72/47,953.28 = 9,779.84/x
  3. Step 3: Cross multiply
    31,966.72x = 47,953.28 × 9,779.84
  4. Step 4: Simplify right side
    31,966.72x = 468,975,405.88
  5. Step 5: Solve for x
    x = 468,975,405.88/31,966.72
  6. Step 6: Final answer
    x = 14,670.74

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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.