Home / 28,025.76-42,038.52-9,307.20

Finding the Fourth Proportional to 28,025.76, 42,038.52 and 9,307.20

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Solution

The fourth proportional to 28,025.76, 42,038.52 and 9,307.20 is: 13,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.76 : 42,038.52 = 9,307.20 : x
  2. Step 2: Convert to fraction form
    28,025.76/42,038.52 = 9,307.20/x
  3. Step 3: Cross multiply
    28,025.76x = 42,038.52 × 9,307.20
  4. Step 4: Simplify right side
    28,025.76x = 391,260,913.34
  5. Step 5: Solve for x
    x = 391,260,913.34/28,025.76
  6. Step 6: Final answer
    x = 13,960.76

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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.