Home / 31,603.56-47,389.66-18,459.24

Finding the Fourth Proportional to 31,603.56, 47,389.66 and 18,459.24

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Solution

The fourth proportional to 31,603.56, 47,389.66 and 18,459.24 is: 27,679.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,603.56 : 47,389.66 = 18,459.24 : x
  2. Step 2: Convert to fraction form
    31,603.56/47,389.66 = 18,459.24/x
  3. Step 3: Cross multiply
    31,603.56x = 47,389.66 × 18,459.24
  4. Step 4: Simplify right side
    31,603.56x = 874,777,107.46
  5. Step 5: Solve for x
    x = 874,777,107.46/31,603.56
  6. Step 6: Final answer
    x = 27,679.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.