Home / 27,798.06-38,360.58-15,861.18

Finding the Fourth Proportional to 27,798.06, 38,360.58 and 15,861.18

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Solution

The fourth proportional to 27,798.06, 38,360.58 and 15,861.18 is: 21,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,798.06 : 38,360.58 = 15,861.18 : x
  2. Step 2: Convert to fraction form
    27,798.06/38,360.58 = 15,861.18/x
  3. Step 3: Cross multiply
    27,798.06x = 38,360.58 × 15,861.18
  4. Step 4: Simplify right side
    27,798.06x = 608,444,064.28
  5. Step 5: Solve for x
    x = 608,444,064.28/27,798.06
  6. Step 6: Final answer
    x = 21,888.00

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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.