Home / 35,911.02-49,549.70-20,802.78

Finding the Fourth Proportional to 35,911.02, 49,549.70 and 20,802.78

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Solution

The fourth proportional to 35,911.02, 49,549.70 and 20,802.78 is: 28,703.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,911.02 : 49,549.70 = 20,802.78 : x
  2. Step 2: Convert to fraction form
    35,911.02/49,549.70 = 20,802.78/x
  3. Step 3: Cross multiply
    35,911.02x = 49,549.70 × 20,802.78
  4. Step 4: Simplify right side
    35,911.02x = 1,030,771,508.17
  5. Step 5: Solve for x
    x = 1,030,771,508.17/35,911.02
  6. Step 6: Final answer
    x = 28,703.49

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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.