Home / 30,907.28-42,620.64-26,445.80

Finding the Fourth Proportional to 30,907.28, 42,620.64 and 26,445.80

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Solution

The fourth proportional to 30,907.28, 42,620.64 and 26,445.80 is: 36,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,907.28 : 42,620.64 = 26,445.80 : x
  2. Step 2: Convert to fraction form
    30,907.28/42,620.64 = 26,445.80/x
  3. Step 3: Cross multiply
    30,907.28x = 42,620.64 × 26,445.80
  4. Step 4: Simplify right side
    30,907.28x = 1,127,136,921.31
  5. Step 5: Solve for x
    x = 1,127,136,921.31/30,907.28
  6. Step 6: Final answer
    x = 36,468.33

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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.