Home / 27,538.58-38,001.10-15,603.79

Finding the Fourth Proportional to 27,538.58, 38,001.10 and 15,603.79

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Solution

The fourth proportional to 27,538.58, 38,001.10 and 15,603.79 is: 21,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,538.58 : 38,001.10 = 15,603.79 : x
  2. Step 2: Convert to fraction form
    27,538.58/38,001.10 = 15,603.79/x
  3. Step 3: Cross multiply
    27,538.58x = 38,001.10 × 15,603.79
  4. Step 4: Simplify right side
    27,538.58x = 592,961,150.67
  5. Step 5: Solve for x
    x = 592,961,150.67/27,538.58
  6. Step 6: Final answer
    x = 21,532.01

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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.