Home / 30,435.65-45,650.23-14,421.32

Finding the Fourth Proportional to 30,435.65, 45,650.23 and 14,421.32

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Solution

The fourth proportional to 30,435.65, 45,650.23 and 14,421.32 is: 21,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,435.65 : 45,650.23 = 14,421.32 : x
  2. Step 2: Convert to fraction form
    30,435.65/45,650.23 = 14,421.32/x
  3. Step 3: Cross multiply
    30,435.65x = 45,650.23 × 14,421.32
  4. Step 4: Simplify right side
    30,435.65x = 658,336,574.90
  5. Step 5: Solve for x
    x = 658,336,574.90/30,435.65
  6. Step 6: Final answer
    x = 21,630.44

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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.