Home / 28,030.70-42,009.60-11,377.10

Finding the Fourth Proportional to 28,030.70, 42,009.60 and 11,377.10

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Solution

The fourth proportional to 28,030.70, 42,009.60 and 11,377.10 is: 17,050.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.70 : 42,009.60 = 11,377.10 : x
  2. Step 2: Convert to fraction form
    28,030.70/42,009.60 = 11,377.10/x
  3. Step 3: Cross multiply
    28,030.70x = 42,009.60 × 11,377.10
  4. Step 4: Simplify right side
    28,030.70x = 477,947,420.16
  5. Step 5: Solve for x
    x = 477,947,420.16/28,030.70
  6. Step 6: Final answer
    x = 17,050.86

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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.