Home / 37,681.83-51,999.98-20,913.75

Finding the Fourth Proportional to 37,681.83, 51,999.98 and 20,913.75

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Solution

The fourth proportional to 37,681.83, 51,999.98 and 20,913.75 is: 28,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,681.83 : 51,999.98 = 20,913.75 : x
  2. Step 2: Convert to fraction form
    37,681.83/51,999.98 = 20,913.75/x
  3. Step 3: Cross multiply
    37,681.83x = 51,999.98 × 20,913.75
  4. Step 4: Simplify right side
    37,681.83x = 1,087,514,477.16
  5. Step 5: Solve for x
    x = 1,087,514,477.16/37,681.83
  6. Step 6: Final answer
    x = 28,860.45

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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.