Home / 22,779.95-31,437.72-12,708.41

Finding the Fourth Proportional to 22,779.95, 31,437.72 and 12,708.41

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Solution

The fourth proportional to 22,779.95, 31,437.72 and 12,708.41 is: 17,538.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.95 : 31,437.72 = 12,708.41 : x
  2. Step 2: Convert to fraction form
    22,779.95/31,437.72 = 12,708.41/x
  3. Step 3: Cross multiply
    22,779.95x = 31,437.72 × 12,708.41
  4. Step 4: Simplify right side
    22,779.95x = 399,523,435.23
  5. Step 5: Solve for x
    x = 399,523,435.23/22,779.95
  6. Step 6: Final answer
    x = 17,538.38

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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.