Home / 31,389.16-47,083.74-11,667.28

Finding the Fourth Proportional to 31,389.16, 47,083.74 and 11,667.28

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Solution

The fourth proportional to 31,389.16, 47,083.74 and 11,667.28 is: 17,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.16 : 47,083.74 = 11,667.28 : x
  2. Step 2: Convert to fraction form
    31,389.16/47,083.74 = 11,667.28/x
  3. Step 3: Cross multiply
    31,389.16x = 47,083.74 × 11,667.28
  4. Step 4: Simplify right side
    31,389.16x = 549,339,178.03
  5. Step 5: Solve for x
    x = 549,339,178.03/31,389.16
  6. Step 6: Final answer
    x = 17,500.92

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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.