Home / 31,308.48-43,210.14-19,375.66

Finding the Fourth Proportional to 31,308.48, 43,210.14 and 19,375.66

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Solution

The fourth proportional to 31,308.48, 43,210.14 and 19,375.66 is: 26,741.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.48 : 43,210.14 = 19,375.66 : x
  2. Step 2: Convert to fraction form
    31,308.48/43,210.14 = 19,375.66/x
  3. Step 3: Cross multiply
    31,308.48x = 43,210.14 × 19,375.66
  4. Step 4: Simplify right side
    31,308.48x = 837,224,981.19
  5. Step 5: Solve for x
    x = 837,224,981.19/31,308.48
  6. Step 6: Final answer
    x = 26,741.16

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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.