Home / 28,200.31-42,300.36-12,607.00

Finding the Fourth Proportional to 28,200.31, 42,300.36 and 12,607.00

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Solution

The fourth proportional to 28,200.31, 42,300.36 and 12,607.00 is: 18,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.31 : 42,300.36 = 12,607.00 : x
  2. Step 2: Convert to fraction form
    28,200.31/42,300.36 = 12,607.00/x
  3. Step 3: Cross multiply
    28,200.31x = 42,300.36 × 12,607.00
  4. Step 4: Simplify right side
    28,200.31x = 533,280,532.77
  5. Step 5: Solve for x
    x = 533,280,532.77/28,200.31
  6. Step 6: Final answer
    x = 18,910.45

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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.