Home / 30,666.51-42,320.98-17,237.72

Finding the Fourth Proportional to 30,666.51, 42,320.98 and 17,237.72

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Solution

The fourth proportional to 30,666.51, 42,320.98 and 17,237.72 is: 23,788.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.51 : 42,320.98 = 17,237.72 : x
  2. Step 2: Convert to fraction form
    30,666.51/42,320.98 = 17,237.72/x
  3. Step 3: Cross multiply
    30,666.51x = 42,320.98 × 17,237.72
  4. Step 4: Simplify right side
    30,666.51x = 729,517,203.37
  5. Step 5: Solve for x
    x = 729,517,203.37/30,666.51
  6. Step 6: Final answer
    x = 23,788.73

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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.