Home / 31,458.12-43,412.36-18,030.18

Finding the Fourth Proportional to 31,458.12, 43,412.36 and 18,030.18

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Solution

The fourth proportional to 31,458.12, 43,412.36 and 18,030.18 is: 24,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.12 : 43,412.36 = 18,030.18 : x
  2. Step 2: Convert to fraction form
    31,458.12/43,412.36 = 18,030.18/x
  3. Step 3: Cross multiply
    31,458.12x = 43,412.36 × 18,030.18
  4. Step 4: Simplify right side
    31,458.12x = 782,732,665.02
  5. Step 5: Solve for x
    x = 782,732,665.02/31,458.12
  6. Step 6: Final answer
    x = 24,881.74

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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.