Home / 28,127.18-42,177.74-10,353.35

Finding the Fourth Proportional to 28,127.18, 42,177.74 and 10,353.35

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Solution

The fourth proportional to 28,127.18, 42,177.74 and 10,353.35 is: 15,525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.18 : 42,177.74 = 10,353.35 : x
  2. Step 2: Convert to fraction form
    28,127.18/42,177.74 = 10,353.35/x
  3. Step 3: Cross multiply
    28,127.18x = 42,177.74 × 10,353.35
  4. Step 4: Simplify right side
    28,127.18x = 436,680,641.77
  5. Step 5: Solve for x
    x = 436,680,641.77/28,127.18
  6. Step 6: Final answer
    x = 15,525.22

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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.