Home / 28,009.60-42,014.40-13,247.35

Finding the Fourth Proportional to 28,009.60, 42,014.40 and 13,247.35

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Solution

The fourth proportional to 28,009.60, 42,014.40 and 13,247.35 is: 19,871.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009.60 : 42,014.40 = 13,247.35 : x
  2. Step 2: Convert to fraction form
    28,009.60/42,014.40 = 13,247.35/x
  3. Step 3: Cross multiply
    28,009.60x = 42,014.40 × 13,247.35
  4. Step 4: Simplify right side
    28,009.60x = 556,579,461.84
  5. Step 5: Solve for x
    x = 556,579,461.84/28,009.60
  6. Step 6: Final answer
    x = 19,871.03

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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.