Home / 31,547.65-43,535.67-18,119.77

Finding the Fourth Proportional to 31,547.65, 43,535.67 and 18,119.77

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Solution

The fourth proportional to 31,547.65, 43,535.67 and 18,119.77 is: 25,005.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.65 : 43,535.67 = 18,119.77 : x
  2. Step 2: Convert to fraction form
    31,547.65/43,535.67 = 18,119.77/x
  3. Step 3: Cross multiply
    31,547.65x = 43,535.67 × 18,119.77
  4. Step 4: Simplify right side
    31,547.65x = 788,856,327.20
  5. Step 5: Solve for x
    x = 788,856,327.20/31,547.65
  6. Step 6: Final answer
    x = 25,005.23

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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.