Home / 30,475.59-42,017.11-25,370.74

Finding the Fourth Proportional to 30,475.59, 42,017.11 and 25,370.74

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Solution

The fourth proportional to 30,475.59, 42,017.11 and 25,370.74 is: 34,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,475.59 : 42,017.11 = 25,370.74 : x
  2. Step 2: Convert to fraction form
    30,475.59/42,017.11 = 25,370.74/x
  3. Step 3: Cross multiply
    30,475.59x = 42,017.11 × 25,370.74
  4. Step 4: Simplify right side
    30,475.59x = 1,066,005,173.36
  5. Step 5: Solve for x
    x = 1,066,005,173.36/30,475.59
  6. Step 6: Final answer
    x = 34,978.98

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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.