Home / 39,715.90-59,483.12-18,953.98

Finding the Fourth Proportional to 39,715.90, 59,483.12 and 18,953.98

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Solution

The fourth proportional to 39,715.90, 59,483.12 and 18,953.98 is: 28,387.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,715.90 : 59,483.12 = 18,953.98 : x
  2. Step 2: Convert to fraction form
    39,715.90/59,483.12 = 18,953.98/x
  3. Step 3: Cross multiply
    39,715.90x = 59,483.12 × 18,953.98
  4. Step 4: Simplify right side
    39,715.90x = 1,127,441,866.82
  5. Step 5: Solve for x
    x = 1,127,441,866.82/39,715.90
  6. Step 6: Final answer
    x = 28,387.67

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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.