Home / 38,423.95-53,024.00-21,428.71

Finding the Fourth Proportional to 38,423.95, 53,024.00 and 21,428.71

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Solution

The fourth proportional to 38,423.95, 53,024.00 and 21,428.71 is: 29,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423.95 : 53,024.00 = 21,428.71 : x
  2. Step 2: Convert to fraction form
    38,423.95/53,024.00 = 21,428.71/x
  3. Step 3: Cross multiply
    38,423.95x = 53,024.00 × 21,428.71
  4. Step 4: Simplify right side
    38,423.95x = 1,136,235,811.90
  5. Step 5: Solve for x
    x = 1,136,235,811.90/38,423.95
  6. Step 6: Final answer
    x = 29,571.03

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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.