Home / 30,117.64-45,158.98-11,399.12

Finding the Fourth Proportional to 30,117.64, 45,158.98 and 11,399.12

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Solution

The fourth proportional to 30,117.64, 45,158.98 and 11,399.12 is: 17,092.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.64 : 45,158.98 = 11,399.12 : x
  2. Step 2: Convert to fraction form
    30,117.64/45,158.98 = 11,399.12/x
  3. Step 3: Cross multiply
    30,117.64x = 45,158.98 × 11,399.12
  4. Step 4: Simplify right side
    30,117.64x = 514,772,632.10
  5. Step 5: Solve for x
    x = 514,772,632.10/30,117.64
  6. Step 6: Final answer
    x = 17,092.06

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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.