Home / 31,150.60-42,987.54-19,209.16

Finding the Fourth Proportional to 31,150.60, 42,987.54 and 19,209.16

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Solution

The fourth proportional to 31,150.60, 42,987.54 and 19,209.16 is: 26,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,150.60 : 42,987.54 = 19,209.16 : x
  2. Step 2: Convert to fraction form
    31,150.60/42,987.54 = 19,209.16/x
  3. Step 3: Cross multiply
    31,150.60x = 42,987.54 × 19,209.16
  4. Step 4: Simplify right side
    31,150.60x = 825,754,533.87
  5. Step 5: Solve for x
    x = 825,754,533.87/31,150.60
  6. Step 6: Final answer
    x = 26,508.46

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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.