Home / 35,999.12-49,681.40-20,900.52

Finding the Fourth Proportional to 35,999.12, 49,681.40 and 20,900.52

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Solution

The fourth proportional to 35,999.12, 49,681.40 and 20,900.52 is: 28,844.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,999.12 : 49,681.40 = 20,900.52 : x
  2. Step 2: Convert to fraction form
    35,999.12/49,681.40 = 20,900.52/x
  3. Step 3: Cross multiply
    35,999.12x = 49,681.40 × 20,900.52
  4. Step 4: Simplify right side
    35,999.12x = 1,038,366,989.83
  5. Step 5: Solve for x
    x = 1,038,366,989.83/35,999.12
  6. Step 6: Final answer
    x = 28,844.24

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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.