Home / 30,426.90-45,629.28-11,697.30

Finding the Fourth Proportional to 30,426.90, 45,629.28 and 11,697.30

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Solution

The fourth proportional to 30,426.90, 45,629.28 and 11,697.30 is: 17,541.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.90 : 45,629.28 = 11,697.30 : x
  2. Step 2: Convert to fraction form
    30,426.90/45,629.28 = 11,697.30/x
  3. Step 3: Cross multiply
    30,426.90x = 45,629.28 × 11,697.30
  4. Step 4: Simplify right side
    30,426.90x = 533,739,376.94
  5. Step 5: Solve for x
    x = 533,739,376.94/30,426.90
  6. Step 6: Final answer
    x = 17,541.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.