Home / 28,480.95-39,302.90-15,733.93

Finding the Fourth Proportional to 28,480.95, 39,302.90 and 15,733.93

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Solution

The fourth proportional to 28,480.95, 39,302.90 and 15,733.93 is: 21,712.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.95 : 39,302.90 = 15,733.93 : x
  2. Step 2: Convert to fraction form
    28,480.95/39,302.90 = 15,733.93/x
  3. Step 3: Cross multiply
    28,480.95x = 39,302.90 × 15,733.93
  4. Step 4: Simplify right side
    28,480.95x = 618,389,077.40
  5. Step 5: Solve for x
    x = 618,389,077.40/28,480.95
  6. Step 6: Final answer
    x = 21,712.38

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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.