Home / 27,881.79-38,444.43-18,935.07

Finding the Fourth Proportional to 27,881.79, 38,444.43 and 18,935.07

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Solution

The fourth proportional to 27,881.79, 38,444.43 and 18,935.07 is: 26,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.79 : 38,444.43 = 18,935.07 : x
  2. Step 2: Convert to fraction form
    27,881.79/38,444.43 = 18,935.07/x
  3. Step 3: Cross multiply
    27,881.79x = 38,444.43 × 18,935.07
  4. Step 4: Simplify right side
    27,881.79x = 727,947,973.16
  5. Step 5: Solve for x
    x = 727,947,973.16/27,881.79
  6. Step 6: Final answer
    x = 26,108.37

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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.