Home / 53,038.21-79,532.33-19,280.48

Finding the Fourth Proportional to 53,038.21, 79,532.33 and 19,280.48

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Solution

The fourth proportional to 53,038.21, 79,532.33 and 19,280.48 is: 28,911.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,038.21 : 79,532.33 = 19,280.48 : x
  2. Step 2: Convert to fraction form
    53,038.21/79,532.33 = 19,280.48/x
  3. Step 3: Cross multiply
    53,038.21x = 79,532.33 × 19,280.48
  4. Step 4: Simplify right side
    53,038.21x = 1,533,421,559.68
  5. Step 5: Solve for x
    x = 1,533,421,559.68/53,038.21
  6. Step 6: Final answer
    x = 28,911.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.