Home / 28,133.55-42,221.06-13,342.51

Finding the Fourth Proportional to 28,133.55, 42,221.06 and 13,342.51

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Solution

The fourth proportional to 28,133.55, 42,221.06 and 13,342.51 is: 20,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.55 : 42,221.06 = 13,342.51 : x
  2. Step 2: Convert to fraction form
    28,133.55/42,221.06 = 13,342.51/x
  3. Step 3: Cross multiply
    28,133.55x = 42,221.06 × 13,342.51
  4. Step 4: Simplify right side
    28,133.55x = 563,334,915.26
  5. Step 5: Solve for x
    x = 563,334,915.26/28,133.55
  6. Step 6: Final answer
    x = 20,023.60

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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.