Home / 22,779.46-31,430.30-13,826.74

Finding the Fourth Proportional to 22,779.46, 31,430.30 and 13,826.74

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Solution

The fourth proportional to 22,779.46, 31,430.30 and 13,826.74 is: 19,077.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,779.46 : 31,430.30 = 13,826.74 : x
  2. Step 2: Convert to fraction form
    22,779.46/31,430.30 = 13,826.74/x
  3. Step 3: Cross multiply
    22,779.46x = 31,430.30 × 13,826.74
  4. Step 4: Simplify right side
    22,779.46x = 434,578,586.22
  5. Step 5: Solve for x
    x = 434,578,586.22/22,779.46
  6. Step 6: Final answer
    x = 19,077.65

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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.