Home / 35,386.02-48,834.50-20,280.42

Finding the Fourth Proportional to 35,386.02, 48,834.50 and 20,280.42

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Solution

The fourth proportional to 35,386.02, 48,834.50 and 20,280.42 is: 27,988.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,386.02 : 48,834.50 = 20,280.42 : x
  2. Step 2: Convert to fraction form
    35,386.02/48,834.50 = 20,280.42/x
  3. Step 3: Cross multiply
    35,386.02x = 48,834.50 × 20,280.42
  4. Step 4: Simplify right side
    35,386.02x = 990,384,170.49
  5. Step 5: Solve for x
    x = 990,384,170.49/35,386.02
  6. Step 6: Final answer
    x = 27,988.01

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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.