Home / 23,487.81-32,430.19-15,118.89

Finding the Fourth Proportional to 23,487.81, 32,430.19 and 15,118.89

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Solution

The fourth proportional to 23,487.81, 32,430.19 and 15,118.89 is: 20,875.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,487.81 : 32,430.19 = 15,118.89 : x
  2. Step 2: Convert to fraction form
    23,487.81/32,430.19 = 15,118.89/x
  3. Step 3: Cross multiply
    23,487.81x = 32,430.19 × 15,118.89
  4. Step 4: Simplify right side
    23,487.81x = 490,308,475.29
  5. Step 5: Solve for x
    x = 490,308,475.29/23,487.81
  6. Step 6: Final answer
    x = 20,875.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.