Home / 28,029.24-42,051.15-9,312.30

Finding the Fourth Proportional to 28,029.24, 42,051.15 and 9,312.30

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Solution

The fourth proportional to 28,029.24, 42,051.15 and 9,312.30 is: 13,970.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.24 : 42,051.15 = 9,312.30 : x
  2. Step 2: Convert to fraction form
    28,029.24/42,051.15 = 9,312.30/x
  3. Step 3: Cross multiply
    28,029.24x = 42,051.15 × 9,312.30
  4. Step 4: Simplify right side
    28,029.24x = 391,592,924.15
  5. Step 5: Solve for x
    x = 391,592,924.15/28,029.24
  6. Step 6: Final answer
    x = 13,970.87

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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.