Home / 28,017.06-42,026.40-9,305.22

Finding the Fourth Proportional to 28,017.06, 42,026.40 and 9,305.22

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Solution

The fourth proportional to 28,017.06, 42,026.40 and 9,305.22 is: 13,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.06 : 42,026.40 = 9,305.22 : x
  2. Step 2: Convert to fraction form
    28,017.06/42,026.40 = 9,305.22/x
  3. Step 3: Cross multiply
    28,017.06x = 42,026.40 × 9,305.22
  4. Step 4: Simplify right side
    28,017.06x = 391,064,897.81
  5. Step 5: Solve for x
    x = 391,064,897.81/28,017.06
  6. Step 6: Final answer
    x = 13,958.10

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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.