Home / 28,657.48-42,970.46-9,935.84

Finding the Fourth Proportional to 28,657.48, 42,970.46 and 9,935.84

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Solution

The fourth proportional to 28,657.48, 42,970.46 and 9,935.84 is: 14,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,657.48 : 42,970.46 = 9,935.84 : x
  2. Step 2: Convert to fraction form
    28,657.48/42,970.46 = 9,935.84/x
  3. Step 3: Cross multiply
    28,657.48x = 42,970.46 × 9,935.84
  4. Step 4: Simplify right side
    28,657.48x = 426,947,615.29
  5. Step 5: Solve for x
    x = 426,947,615.29/28,657.48
  6. Step 6: Final answer
    x = 14,898.30

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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.