Home / 29,987.51-41,384.00-18,663.71

Finding the Fourth Proportional to 29,987.51, 41,384.00 and 18,663.71

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Solution

The fourth proportional to 29,987.51, 41,384.00 and 18,663.71 is: 25,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,987.51 : 41,384.00 = 18,663.71 : x
  2. Step 2: Convert to fraction form
    29,987.51/41,384.00 = 18,663.71/x
  3. Step 3: Cross multiply
    29,987.51x = 41,384.00 × 18,663.71
  4. Step 4: Simplify right side
    29,987.51x = 772,378,881.32
  5. Step 5: Solve for x
    x = 772,378,881.32/29,987.51
  6. Step 6: Final answer
    x = 25,756.69

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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.