Home / 58,390.61-87,588.09-20,432.48

Finding the Fourth Proportional to 58,390.61, 87,588.09 and 20,432.48

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Solution

The fourth proportional to 58,390.61, 87,588.09 and 20,432.48 is: 30,649.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,390.61 : 87,588.09 = 20,432.48 : x
  2. Step 2: Convert to fraction form
    58,390.61/87,588.09 = 20,432.48/x
  3. Step 3: Cross multiply
    58,390.61x = 87,588.09 × 20,432.48
  4. Step 4: Simplify right side
    58,390.61x = 1,789,641,459.22
  5. Step 5: Solve for x
    x = 1,789,641,459.22/58,390.61
  6. Step 6: Final answer
    x = 30,649.48

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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.