Home / 27,597.81-38,088.43-15,665.00

Finding the Fourth Proportional to 27,597.81, 38,088.43 and 15,665.00

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Solution

The fourth proportional to 27,597.81, 38,088.43 and 15,665.00 is: 21,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,597.81 : 38,088.43 = 15,665.00 : x
  2. Step 2: Convert to fraction form
    27,597.81/38,088.43 = 15,665.00/x
  3. Step 3: Cross multiply
    27,597.81x = 38,088.43 × 15,665.00
  4. Step 4: Simplify right side
    27,597.81x = 596,655,026.35
  5. Step 5: Solve for x
    x = 596,655,026.35/27,597.81
  6. Step 6: Final answer
    x = 21,619.65

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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.