Home / 47,448.21-65,478.51-28,588.98

Finding the Fourth Proportional to 47,448.21, 65,478.51 and 28,588.98

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Solution

The fourth proportional to 47,448.21, 65,478.51 and 28,588.98 is: 39,452.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,448.21 : 65,478.51 = 28,588.98 : x
  2. Step 2: Convert to fraction form
    47,448.21/65,478.51 = 28,588.98/x
  3. Step 3: Cross multiply
    47,448.21x = 65,478.51 × 28,588.98
  4. Step 4: Simplify right side
    47,448.21x = 1,871,963,812.82
  5. Step 5: Solve for x
    x = 1,871,963,812.82/47,448.21
  6. Step 6: Final answer
    x = 39,452.78

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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.