Home / 30,384.11-45,570.40-12,866.24

Finding the Fourth Proportional to 30,384.11, 45,570.40 and 12,866.24

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Solution

The fourth proportional to 30,384.11, 45,570.40 and 12,866.24 is: 19,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.11 : 45,570.40 = 12,866.24 : x
  2. Step 2: Convert to fraction form
    30,384.11/45,570.40 = 12,866.24/x
  3. Step 3: Cross multiply
    30,384.11x = 45,570.40 × 12,866.24
  4. Step 4: Simplify right side
    30,384.11x = 586,319,785.06
  5. Step 5: Solve for x
    x = 586,319,785.06/30,384.11
  6. Step 6: Final answer
    x = 19,296.92

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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.