Home / 30,000.04-45,005.01-12,471.10

Finding the Fourth Proportional to 30,000.04, 45,005.01 and 12,471.10

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Solution

The fourth proportional to 30,000.04, 45,005.01 and 12,471.10 is: 18,708.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,000.04 : 45,005.01 = 12,471.10 : x
  2. Step 2: Convert to fraction form
    30,000.04/45,005.01 = 12,471.10/x
  3. Step 3: Cross multiply
    30,000.04x = 45,005.01 × 12,471.10
  4. Step 4: Simplify right side
    30,000.04x = 561,261,980.21
  5. Step 5: Solve for x
    x = 561,261,980.21/30,000.04
  6. Step 6: Final answer
    x = 18,708.71

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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.