Home / 30,889.26-42,595.35-26,427.78

Finding the Fourth Proportional to 30,889.26, 42,595.35 and 26,427.78

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Solution

The fourth proportional to 30,889.26, 42,595.35 and 26,427.78 is: 36,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,889.26 : 42,595.35 = 26,427.78 : x
  2. Step 2: Convert to fraction form
    30,889.26/42,595.35 = 26,427.78/x
  3. Step 3: Cross multiply
    30,889.26x = 42,595.35 × 26,427.78
  4. Step 4: Simplify right side
    30,889.26x = 1,125,700,538.82
  5. Step 5: Solve for x
    x = 1,125,700,538.82/30,889.26
  6. Step 6: Final answer
    x = 36,443.10

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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.