Home / 31,862.46-47,779.88-10,509.14

Finding the Fourth Proportional to 31,862.46, 47,779.88 and 10,509.14

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Solution

The fourth proportional to 31,862.46, 47,779.88 and 10,509.14 is: 15,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,862.46 : 47,779.88 = 10,509.14 : x
  2. Step 2: Convert to fraction form
    31,862.46/47,779.88 = 10,509.14/x
  3. Step 3: Cross multiply
    31,862.46x = 47,779.88 × 10,509.14
  4. Step 4: Simplify right side
    31,862.46x = 502,125,515.01
  5. Step 5: Solve for x
    x = 502,125,515.01/31,862.46
  6. Step 6: Final answer
    x = 15,759.16

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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.