Home / 20,038.08-27,653.04-11,085.76

Finding the Fourth Proportional to 20,038.08, 27,653.04 and 11,085.76

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Solution

The fourth proportional to 20,038.08, 27,653.04 and 11,085.76 is: 15,298.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.08 : 27,653.04 = 11,085.76 : x
  2. Step 2: Convert to fraction form
    20,038.08/27,653.04 = 11,085.76/x
  3. Step 3: Cross multiply
    20,038.08x = 27,653.04 × 11,085.76
  4. Step 4: Simplify right side
    20,038.08x = 306,554,964.71
  5. Step 5: Solve for x
    x = 306,554,964.71/20,038.08
  6. Step 6: Final answer
    x = 15,298.62

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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.