Home / 15,210.62-21,005.02-14,382.29

Finding the Fourth Proportional to 15,210.62, 21,005.02 and 14,382.29

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Solution

The fourth proportional to 15,210.62, 21,005.02 and 14,382.29 is: 19,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210.62 : 21,005.02 = 14,382.29 : x
  2. Step 2: Convert to fraction form
    15,210.62/21,005.02 = 14,382.29/x
  3. Step 3: Cross multiply
    15,210.62x = 21,005.02 × 14,382.29
  4. Step 4: Simplify right side
    15,210.62x = 302,100,359.59
  5. Step 5: Solve for x
    x = 302,100,359.59/15,210.62
  6. Step 6: Final answer
    x = 19,861.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.