Home / 38,356.17-52,931.34-21,360.61

Finding the Fourth Proportional to 38,356.17, 52,931.34 and 21,360.61

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Solution

The fourth proportional to 38,356.17, 52,931.34 and 21,360.61 is: 29,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,356.17 : 52,931.34 = 21,360.61 : x
  2. Step 2: Convert to fraction form
    38,356.17/52,931.34 = 21,360.61/x
  3. Step 3: Cross multiply
    38,356.17x = 52,931.34 × 21,360.61
  4. Step 4: Simplify right side
    38,356.17x = 1,130,645,710.52
  5. Step 5: Solve for x
    x = 1,130,645,710.52/38,356.17
  6. Step 6: Final answer
    x = 29,477.54

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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.