Home / 39,510.78-54,526.05-21,605.46

Finding the Fourth Proportional to 39,510.78, 54,526.05 and 21,605.46

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Solution

The fourth proportional to 39,510.78, 54,526.05 and 21,605.46 is: 29,816.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,510.78 : 54,526.05 = 21,605.46 : x
  2. Step 2: Convert to fraction form
    39,510.78/54,526.05 = 21,605.46/x
  3. Step 3: Cross multiply
    39,510.78x = 54,526.05 × 21,605.46
  4. Step 4: Simplify right side
    39,510.78x = 1,178,060,392.23
  5. Step 5: Solve for x
    x = 1,178,060,392.23/39,510.78
  6. Step 6: Final answer
    x = 29,816.18

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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.