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Finding the Fourth Proportional to 39,484, 59,255.12 and 18,707.52

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Solution

The fourth proportional to 39,484, 59,255.12 and 18,707.52 is: 28,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,484 : 59,255.12 = 18,707.52 : x
  2. Step 2: Convert to fraction form
    39,484/59,255.12 = 18,707.52/x
  3. Step 3: Cross multiply
    39,484x = 59,255.12 × 18,707.52
  4. Step 4: Simplify right side
    39,484x = 1,108,516,342.50
  5. Step 5: Solve for x
    x = 1,108,516,342.50/39,484
  6. Step 6: Final answer
    x = 28,075.08

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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.