Home / 30,019.24-41,430.18-18,839.08

Finding the Fourth Proportional to 30,019.24, 41,430.18 and 18,839.08

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Solution

The fourth proportional to 30,019.24, 41,430.18 and 18,839.08 is: 26,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,019.24 : 41,430.18 = 18,839.08 : x
  2. Step 2: Convert to fraction form
    30,019.24/41,430.18 = 18,839.08/x
  3. Step 3: Cross multiply
    30,019.24x = 41,430.18 × 18,839.08
  4. Step 4: Simplify right side
    30,019.24x = 780,506,475.43
  5. Step 5: Solve for x
    x = 780,506,475.43/30,019.24
  6. Step 6: Final answer
    x = 26,000.21

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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.