Home / 31,547.76-43,529.85-18,973.32

Finding the Fourth Proportional to 31,547.76, 43,529.85 and 18,973.32

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Solution

The fourth proportional to 31,547.76, 43,529.85 and 18,973.32 is: 26,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.76 : 43,529.85 = 18,973.32 : x
  2. Step 2: Convert to fraction form
    31,547.76/43,529.85 = 18,973.32/x
  3. Step 3: Cross multiply
    31,547.76x = 43,529.85 × 18,973.32
  4. Step 4: Simplify right side
    31,547.76x = 825,905,773.60
  5. Step 5: Solve for x
    x = 825,905,773.60/31,547.76
  6. Step 6: Final answer
    x = 26,179.54

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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.