Home / 31,307.51-43,212.54-19,363.91

Finding the Fourth Proportional to 31,307.51, 43,212.54 and 19,363.91

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Solution

The fourth proportional to 31,307.51, 43,212.54 and 19,363.91 is: 26,727.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.51 : 43,212.54 = 19,363.91 : x
  2. Step 2: Convert to fraction form
    31,307.51/43,212.54 = 19,363.91/x
  3. Step 3: Cross multiply
    31,307.51x = 43,212.54 × 19,363.91
  4. Step 4: Simplify right side
    31,307.51x = 836,763,726.13
  5. Step 5: Solve for x
    x = 836,763,726.13/31,307.51
  6. Step 6: Final answer
    x = 26,727.25

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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.