Home / 27,875.41-38,457.09-15,932.32

Finding the Fourth Proportional to 27,875.41, 38,457.09 and 15,932.32

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Solution

The fourth proportional to 27,875.41, 38,457.09 and 15,932.32 is: 21,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,875.41 : 38,457.09 = 15,932.32 : x
  2. Step 2: Convert to fraction form
    27,875.41/38,457.09 = 15,932.32/x
  3. Step 3: Cross multiply
    27,875.41x = 38,457.09 × 15,932.32
  4. Step 4: Simplify right side
    27,875.41x = 612,710,664.15
  5. Step 5: Solve for x
    x = 612,710,664.15/27,875.41
  6. Step 6: Final answer
    x = 21,980.33

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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.