Home / 35,740.95-49,324.77-20,636.40

Finding the Fourth Proportional to 35,740.95, 49,324.77 and 20,636.40

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Solution

The fourth proportional to 35,740.95, 49,324.77 and 20,636.40 is: 28,479.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,740.95 : 49,324.77 = 20,636.40 : x
  2. Step 2: Convert to fraction form
    35,740.95/49,324.77 = 20,636.40/x
  3. Step 3: Cross multiply
    35,740.95x = 49,324.77 × 20,636.40
  4. Step 4: Simplify right side
    35,740.95x = 1,017,885,683.63
  5. Step 5: Solve for x
    x = 1,017,885,683.63/35,740.95
  6. Step 6: Final answer
    x = 28,479.54

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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.