Home / 37,071.69-51,154.02-21,155.19

Finding the Fourth Proportional to 37,071.69, 51,154.02 and 21,155.19

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Solution

The fourth proportional to 37,071.69, 51,154.02 and 21,155.19 is: 29,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,071.69 : 51,154.02 = 21,155.19 : x
  2. Step 2: Convert to fraction form
    37,071.69/51,154.02 = 21,155.19/x
  3. Step 3: Cross multiply
    37,071.69x = 51,154.02 × 21,155.19
  4. Step 4: Simplify right side
    37,071.69x = 1,082,173,012.36
  5. Step 5: Solve for x
    x = 1,082,173,012.36/37,071.69
  6. Step 6: Final answer
    x = 29,191.36

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Double scale
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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.