Home / 30,631.72-42,287.52-26,203.06

Finding the Fourth Proportional to 30,631.72, 42,287.52 and 26,203.06

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Solution

The fourth proportional to 30,631.72, 42,287.52 and 26,203.06 is: 36,173.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,631.72 : 42,287.52 = 26,203.06 : x
  2. Step 2: Convert to fraction form
    30,631.72/42,287.52 = 26,203.06/x
  3. Step 3: Cross multiply
    30,631.72x = 42,287.52 × 26,203.06
  4. Step 4: Simplify right side
    30,631.72x = 1,108,062,423.81
  5. Step 5: Solve for x
    x = 1,108,062,423.81/30,631.72
  6. Step 6: Final answer
    x = 36,173.69

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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.