Home / 30,368.30-45,509.63-14,340.73

Finding the Fourth Proportional to 30,368.30, 45,509.63 and 14,340.73

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Solution

The fourth proportional to 30,368.30, 45,509.63 and 14,340.73 is: 21,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.30 : 45,509.63 = 14,340.73 : x
  2. Step 2: Convert to fraction form
    30,368.30/45,509.63 = 14,340.73/x
  3. Step 3: Cross multiply
    30,368.30x = 45,509.63 × 14,340.73
  4. Step 4: Simplify right side
    30,368.30x = 652,641,316.23
  5. Step 5: Solve for x
    x = 652,641,316.23/30,368.30
  6. Step 6: Final answer
    x = 21,490.87

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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.