Home / 28,305.48-42,458.16-7,528.98

Finding the Fourth Proportional to 28,305.48, 42,458.16 and 7,528.98

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Solution

The fourth proportional to 28,305.48, 42,458.16 and 7,528.98 is: 11,293.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.48 : 42,458.16 = 7,528.98 : x
  2. Step 2: Convert to fraction form
    28,305.48/42,458.16 = 7,528.98/x
  3. Step 3: Cross multiply
    28,305.48x = 42,458.16 × 7,528.98
  4. Step 4: Simplify right side
    28,305.48x = 319,666,637.48
  5. Step 5: Solve for x
    x = 319,666,637.48/28,305.48
  6. Step 6: Final answer
    x = 11,293.45

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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.