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Finding the Fourth Proportional to 30,487.98, 45,700.52 and 17,312.52

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Solution

The fourth proportional to 30,487.98, 45,700.52 and 17,312.52 is: 25,950.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.98 : 45,700.52 = 17,312.52 : x
  2. Step 2: Convert to fraction form
    30,487.98/45,700.52 = 17,312.52/x
  3. Step 3: Cross multiply
    30,487.98x = 45,700.52 × 17,312.52
  4. Step 4: Simplify right side
    30,487.98x = 791,191,166.51
  5. Step 5: Solve for x
    x = 791,191,166.51/30,487.98
  6. Step 6: Final answer
    x = 25,950.92

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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.