Home / 28,065.64-42,080.70-15,762.28

Finding the Fourth Proportional to 28,065.64, 42,080.70 and 15,762.28

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Solution

The fourth proportional to 28,065.64, 42,080.70 and 15,762.28 is: 23,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,065.64 : 42,080.70 = 15,762.28 : x
  2. Step 2: Convert to fraction form
    28,065.64/42,080.70 = 15,762.28/x
  3. Step 3: Cross multiply
    28,065.64x = 42,080.70 × 15,762.28
  4. Step 4: Simplify right side
    28,065.64x = 663,287,776.00
  5. Step 5: Solve for x
    x = 663,287,776.00/28,065.64
  6. Step 6: Final answer
    x = 23,633.45

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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.