Home / 39,570.06-54,607.32-21,664.76

Finding the Fourth Proportional to 39,570.06, 54,607.32 and 21,664.76

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Solution

The fourth proportional to 39,570.06, 54,607.32 and 21,664.76 is: 29,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,570.06 : 54,607.32 = 21,664.76 : x
  2. Step 2: Convert to fraction form
    39,570.06/54,607.32 = 21,664.76/x
  3. Step 3: Cross multiply
    39,570.06x = 54,607.32 × 21,664.76
  4. Step 4: Simplify right side
    39,570.06x = 1,183,054,482.04
  5. Step 5: Solve for x
    x = 1,183,054,482.04/39,570.06
  6. Step 6: Final answer
    x = 29,897.72

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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.