Home / 27,538.11-38,002.48-15,603.71

Finding the Fourth Proportional to 27,538.11, 38,002.48 and 15,603.71

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Solution

The fourth proportional to 27,538.11, 38,002.48 and 15,603.71 is: 21,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,538.11 : 38,002.48 = 15,603.71 : x
  2. Step 2: Convert to fraction form
    27,538.11/38,002.48 = 15,603.71/x
  3. Step 3: Cross multiply
    27,538.11x = 38,002.48 × 15,603.71
  4. Step 4: Simplify right side
    27,538.11x = 592,979,448.18
  5. Step 5: Solve for x
    x = 592,979,448.18/27,538.11
  6. Step 6: Final answer
    x = 21,533.05

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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.