Home / 30,410.93-45,623.51-10,420.64

Finding the Fourth Proportional to 30,410.93, 45,623.51 and 10,420.64

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Solution

The fourth proportional to 30,410.93, 45,623.51 and 10,420.64 is: 15,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,410.93 : 45,623.51 = 10,420.64 : x
  2. Step 2: Convert to fraction form
    30,410.93/45,623.51 = 10,420.64/x
  3. Step 3: Cross multiply
    30,410.93x = 45,623.51 × 10,420.64
  4. Step 4: Simplify right side
    30,410.93x = 475,426,313.36
  5. Step 5: Solve for x
    x = 475,426,313.36/30,410.93
  6. Step 6: Final answer
    x = 15,633.40

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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.