Home / 28,036.19-42,062.40-8,315.22

Finding the Fourth Proportional to 28,036.19, 42,062.40 and 8,315.22

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Solution

The fourth proportional to 28,036.19, 42,062.40 and 8,315.22 is: 12,475.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.19 : 42,062.40 = 8,315.22 : x
  2. Step 2: Convert to fraction form
    28,036.19/42,062.40 = 8,315.22/x
  3. Step 3: Cross multiply
    28,036.19x = 42,062.40 × 8,315.22
  4. Step 4: Simplify right side
    28,036.19x = 349,758,109.73
  5. Step 5: Solve for x
    x = 349,758,109.73/28,036.19
  6. Step 6: Final answer
    x = 12,475.24

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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.