Home / 28,502.54-42,730.75-11,875.06

Finding the Fourth Proportional to 28,502.54, 42,730.75 and 11,875.06

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Solution

The fourth proportional to 28,502.54, 42,730.75 and 11,875.06 is: 17,802.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.54 : 42,730.75 = 11,875.06 : x
  2. Step 2: Convert to fraction form
    28,502.54/42,730.75 = 11,875.06/x
  3. Step 3: Cross multiply
    28,502.54x = 42,730.75 × 11,875.06
  4. Step 4: Simplify right side
    28,502.54x = 507,430,220.10
  5. Step 5: Solve for x
    x = 507,430,220.10/28,502.54
  6. Step 6: Final answer
    x = 17,802.98

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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.