Home / 31,554.60-43,547.46-18,130.20

Finding the Fourth Proportional to 31,554.60, 43,547.46 and 18,130.20

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Solution

The fourth proportional to 31,554.60, 43,547.46 and 18,130.20 is: 25,020.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,554.60 : 43,547.46 = 18,130.20 : x
  2. Step 2: Convert to fraction form
    31,554.60/43,547.46 = 18,130.20/x
  3. Step 3: Cross multiply
    31,554.60x = 43,547.46 × 18,130.20
  4. Step 4: Simplify right side
    31,554.60x = 789,524,159.29
  5. Step 5: Solve for x
    x = 789,524,159.29/31,554.60
  6. Step 6: Final answer
    x = 25,020.89

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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.