Home / 31,457.12-47,171.09-11,730.38

Finding the Fourth Proportional to 31,457.12, 47,171.09 and 11,730.38

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Solution

The fourth proportional to 31,457.12, 47,171.09 and 11,730.38 is: 17,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.12 : 47,171.09 = 11,730.38 : x
  2. Step 2: Convert to fraction form
    31,457.12/47,171.09 = 11,730.38/x
  3. Step 3: Cross multiply
    31,457.12x = 47,171.09 × 11,730.38
  4. Step 4: Simplify right side
    31,457.12x = 553,334,810.71
  5. Step 5: Solve for x
    x = 553,334,810.71/31,457.12
  6. Step 6: Final answer
    x = 17,590.13

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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.