Home / 35,387.16-48,828.71-20,276.92

Finding the Fourth Proportional to 35,387.16, 48,828.71 and 20,276.92

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Solution

The fourth proportional to 35,387.16, 48,828.71 and 20,276.92 is: 27,978.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,387.16 : 48,828.71 = 20,276.92 : x
  2. Step 2: Convert to fraction form
    35,387.16/48,828.71 = 20,276.92/x
  3. Step 3: Cross multiply
    35,387.16x = 48,828.71 × 20,276.92
  4. Step 4: Simplify right side
    35,387.16x = 990,095,673.61
  5. Step 5: Solve for x
    x = 990,095,673.61/35,387.16
  6. Step 6: Final answer
    x = 27,978.95

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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.