Home / 29,280.34-40,407.08-15,851.63

Finding the Fourth Proportional to 29,280.34, 40,407.08 and 15,851.63

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Solution

The fourth proportional to 29,280.34, 40,407.08 and 15,851.63 is: 21,875.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.34 : 40,407.08 = 15,851.63 : x
  2. Step 2: Convert to fraction form
    29,280.34/40,407.08 = 15,851.63/x
  3. Step 3: Cross multiply
    29,280.34x = 40,407.08 × 15,851.63
  4. Step 4: Simplify right side
    29,280.34x = 640,517,977.42
  5. Step 5: Solve for x
    x = 640,517,977.42/29,280.34
  6. Step 6: Final answer
    x = 21,875.36

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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.