Home / 28,559.02-42,904.23-20,259.58

Finding the Fourth Proportional to 28,559.02, 42,904.23 and 20,259.58

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Solution

The fourth proportional to 28,559.02, 42,904.23 and 20,259.58 is: 30,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,559.02 : 42,904.23 = 20,259.58 : x
  2. Step 2: Convert to fraction form
    28,559.02/42,904.23 = 20,259.58/x
  3. Step 3: Cross multiply
    28,559.02x = 42,904.23 × 20,259.58
  4. Step 4: Simplify right side
    28,559.02x = 869,221,680.02
  5. Step 5: Solve for x
    x = 869,221,680.02/28,559.02
  6. Step 6: Final answer
    x = 30,435.98

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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.