Home / 28,561.02-42,830.73-13,765.02

Finding the Fourth Proportional to 28,561.02, 42,830.73 and 13,765.02

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Solution

The fourth proportional to 28,561.02, 42,830.73 and 13,765.02 is: 20,642.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,561.02 : 42,830.73 = 13,765.02 : x
  2. Step 2: Convert to fraction form
    28,561.02/42,830.73 = 13,765.02/x
  3. Step 3: Cross multiply
    28,561.02x = 42,830.73 × 13,765.02
  4. Step 4: Simplify right side
    28,561.02x = 589,565,855.06
  5. Step 5: Solve for x
    x = 589,565,855.06/28,561.02
  6. Step 6: Final answer
    x = 20,642.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.