Home / 39,510.96-54,525.14-21,607.63

Finding the Fourth Proportional to 39,510.96, 54,525.14 and 21,607.63

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Solution

The fourth proportional to 39,510.96, 54,525.14 and 21,607.63 is: 29,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,510.96 : 54,525.14 = 21,607.63 : x
  2. Step 2: Convert to fraction form
    39,510.96/54,525.14 = 21,607.63/x
  3. Step 3: Cross multiply
    39,510.96x = 54,525.14 × 21,607.63
  4. Step 4: Simplify right side
    39,510.96x = 1,178,158,887.50
  5. Step 5: Solve for x
    x = 1,178,158,887.50/39,510.96
  6. Step 6: Final answer
    x = 29,818.54

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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.