Home / 28,309.90-42,463.63-7,250.51

Finding the Fourth Proportional to 28,309.90, 42,463.63 and 7,250.51

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Solution

The fourth proportional to 28,309.90, 42,463.63 and 7,250.51 is: 10,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,309.90 : 42,463.63 = 7,250.51 : x
  2. Step 2: Convert to fraction form
    28,309.90/42,463.63 = 7,250.51/x
  3. Step 3: Cross multiply
    28,309.90x = 42,463.63 × 7,250.51
  4. Step 4: Simplify right side
    28,309.90x = 307,882,870.71
  5. Step 5: Solve for x
    x = 307,882,870.71/28,309.90
  6. Step 6: Final answer
    x = 10,875.45

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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.