Home / 30,259.49-45,390.45-10,540.04

Finding the Fourth Proportional to 30,259.49, 45,390.45 and 10,540.04

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Solution

The fourth proportional to 30,259.49, 45,390.45 and 10,540.04 is: 15,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.49 : 45,390.45 = 10,540.04 : x
  2. Step 2: Convert to fraction form
    30,259.49/45,390.45 = 10,540.04/x
  3. Step 3: Cross multiply
    30,259.49x = 45,390.45 × 10,540.04
  4. Step 4: Simplify right side
    30,259.49x = 478,417,158.62
  5. Step 5: Solve for x
    x = 478,417,158.62/30,259.49
  6. Step 6: Final answer
    x = 15,810.48

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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.