Home / 30,915.58-42,631.38-26,454.10

Finding the Fourth Proportional to 30,915.58, 42,631.38 and 26,454.10

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Solution

The fourth proportional to 30,915.58, 42,631.38 and 26,454.10 is: 36,479.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,915.58 : 42,631.38 = 26,454.10 : x
  2. Step 2: Convert to fraction form
    30,915.58/42,631.38 = 26,454.10/x
  3. Step 3: Cross multiply
    30,915.58x = 42,631.38 × 26,454.10
  4. Step 4: Simplify right side
    30,915.58x = 1,127,774,789.66
  5. Step 5: Solve for x
    x = 1,127,774,789.66/30,915.58
  6. Step 6: Final answer
    x = 36,479.17

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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.