Home / 37,316.36-51,495-21,389.72

Finding the Fourth Proportional to 37,316.36, 51,495 and 21,389.72

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Solution

The fourth proportional to 37,316.36, 51,495 and 21,389.72 is: 29,516.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,316.36 : 51,495 = 21,389.72 : x
  2. Step 2: Convert to fraction form
    37,316.36/51,495 = 21,389.72/x
  3. Step 3: Cross multiply
    37,316.36x = 51,495 × 21,389.72
  4. Step 4: Simplify right side
    37,316.36x = 1,101,463,631.40
  5. Step 5: Solve for x
    x = 1,101,463,631.40/37,316.36
  6. Step 6: Final answer
    x = 29,516.91

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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.