Home / 39,657.74-54,726.74-21,752.58

Finding the Fourth Proportional to 39,657.74, 54,726.74 and 21,752.58

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Solution

The fourth proportional to 39,657.74, 54,726.74 and 21,752.58 is: 30,018.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,657.74 : 54,726.74 = 21,752.58 : x
  2. Step 2: Convert to fraction form
    39,657.74/54,726.74 = 21,752.58/x
  3. Step 3: Cross multiply
    39,657.74x = 54,726.74 × 21,752.58
  4. Step 4: Simplify right side
    39,657.74x = 1,190,447,681.23
  5. Step 5: Solve for x
    x = 1,190,447,681.23/39,657.74
  6. Step 6: Final answer
    x = 30,018.05

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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.