Home / 39,328.16-54,273.50-21,423.18

Finding the Fourth Proportional to 39,328.16, 54,273.50 and 21,423.18

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Solution

The fourth proportional to 39,328.16, 54,273.50 and 21,423.18 is: 29,564.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,328.16 : 54,273.50 = 21,423.18 : x
  2. Step 2: Convert to fraction form
    39,328.16/54,273.50 = 21,423.18/x
  3. Step 3: Cross multiply
    39,328.16x = 54,273.50 × 21,423.18
  4. Step 4: Simplify right side
    39,328.16x = 1,162,710,852.61
  5. Step 5: Solve for x
    x = 1,162,710,852.61/39,328.16
  6. Step 6: Final answer
    x = 29,564.34

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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.