Home / 35,478.02-48,966.75-20,381.04

Finding the Fourth Proportional to 35,478.02, 48,966.75 and 20,381.04

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Solution

The fourth proportional to 35,478.02, 48,966.75 and 20,381.04 is: 28,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.02 : 48,966.75 = 20,381.04 : x
  2. Step 2: Convert to fraction form
    35,478.02/48,966.75 = 20,381.04/x
  3. Step 3: Cross multiply
    35,478.02x = 48,966.75 × 20,381.04
  4. Step 4: Simplify right side
    35,478.02x = 997,993,290.42
  5. Step 5: Solve for x
    x = 997,993,290.42/35,478.02
  6. Step 6: Final answer
    x = 28,129.91

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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.