Home / 29,280.74-40,407.41-15,851.99

Finding the Fourth Proportional to 29,280.74, 40,407.41 and 15,851.99

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Solution

The fourth proportional to 29,280.74, 40,407.41 and 15,851.99 is: 21,875.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.74 : 40,407.41 = 15,851.99 : x
  2. Step 2: Convert to fraction form
    29,280.74/40,407.41 = 15,851.99/x
  3. Step 3: Cross multiply
    29,280.74x = 40,407.41 × 15,851.99
  4. Step 4: Simplify right side
    29,280.74x = 640,537,577.95
  5. Step 5: Solve for x
    x = 640,537,577.95/29,280.74
  6. Step 6: Final answer
    x = 21,875.73

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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.