Home / 37,643.12-51,946.20-20,877.68

Finding the Fourth Proportional to 37,643.12, 51,946.20 and 20,877.68

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Solution

The fourth proportional to 37,643.12, 51,946.20 and 20,877.68 is: 28,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,643.12 : 51,946.20 = 20,877.68 : x
  2. Step 2: Convert to fraction form
    37,643.12/51,946.20 = 20,877.68/x
  3. Step 3: Cross multiply
    37,643.12x = 51,946.20 × 20,877.68
  4. Step 4: Simplify right side
    37,643.12x = 1,084,516,140.82
  5. Step 5: Solve for x
    x = 1,084,516,140.82/37,643.12
  6. Step 6: Final answer
    x = 28,810.47

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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.