Home / 38,929.19-53,722.28-21,024.19

Finding the Fourth Proportional to 38,929.19, 53,722.28 and 21,024.19

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Solution

The fourth proportional to 38,929.19, 53,722.28 and 21,024.19 is: 29,013.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,929.19 : 53,722.28 = 21,024.19 : x
  2. Step 2: Convert to fraction form
    38,929.19/53,722.28 = 21,024.19/x
  3. Step 3: Cross multiply
    38,929.19x = 53,722.28 × 21,024.19
  4. Step 4: Simplify right side
    38,929.19x = 1,129,467,280.52
  5. Step 5: Solve for x
    x = 1,129,467,280.52/38,929.19
  6. Step 6: Final answer
    x = 29,013.38

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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.