Home / 30,724.65-42,310.76-26,689.64

Finding the Fourth Proportional to 30,724.65, 42,310.76 and 26,689.64

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Solution

The fourth proportional to 30,724.65, 42,310.76 and 26,689.64 is: 36,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724.65 : 42,310.76 = 26,689.64 : x
  2. Step 2: Convert to fraction form
    30,724.65/42,310.76 = 26,689.64/x
  3. Step 3: Cross multiply
    30,724.65x = 42,310.76 × 26,689.64
  4. Step 4: Simplify right side
    30,724.65x = 1,129,258,607.52
  5. Step 5: Solve for x
    x = 1,129,258,607.52/30,724.65
  6. Step 6: Final answer
    x = 36,754.16

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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.