Home / 22,779.04-31,436-12,707.52

Finding the Fourth Proportional to 22,779.04, 31,436 and 12,707.52

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Solution

The fourth proportional to 22,779.04, 31,436 and 12,707.52 is: 17,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.04 : 31,436 = 12,707.52 : x
  2. Step 2: Convert to fraction form
    22,779.04/31,436 = 12,707.52/x
  3. Step 3: Cross multiply
    22,779.04x = 31,436 × 12,707.52
  4. Step 4: Simplify right side
    22,779.04x = 399,473,598.72
  5. Step 5: Solve for x
    x = 399,473,598.72/22,779.04
  6. Step 6: Final answer
    x = 17,536.89

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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.