Home / 19,921.16-29,842.85-15,518.00

Finding the Fourth Proportional to 19,921.16, 29,842.85 and 15,518.00

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Solution

The fourth proportional to 19,921.16, 29,842.85 and 15,518.00 is: 23,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,921.16 : 29,842.85 = 15,518.00 : x
  2. Step 2: Convert to fraction form
    19,921.16/29,842.85 = 15,518.00/x
  3. Step 3: Cross multiply
    19,921.16x = 29,842.85 × 15,518.00
  4. Step 4: Simplify right side
    19,921.16x = 463,101,119.50
  5. Step 5: Solve for x
    x = 463,101,119.50/19,921.16
  6. Step 6: Final answer
    x = 23,246.70

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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.