Home / 42,129.24-63,189.66-10,964.49

Finding the Fourth Proportional to 42,129.24, 63,189.66 and 10,964.49

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Solution

The fourth proportional to 42,129.24, 63,189.66 and 10,964.49 is: 16,445.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,129.24 : 63,189.66 = 10,964.49 : x
  2. Step 2: Convert to fraction form
    42,129.24/63,189.66 = 10,964.49/x
  3. Step 3: Cross multiply
    42,129.24x = 63,189.66 × 10,964.49
  4. Step 4: Simplify right side
    42,129.24x = 692,842,395.17
  5. Step 5: Solve for x
    x = 692,842,395.17/42,129.24
  6. Step 6: Final answer
    x = 16,445.64

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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.