Home / 20,501.24-28,292.93-12,545.01

Finding the Fourth Proportional to 20,501.24, 28,292.93 and 12,545.01

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Solution

The fourth proportional to 20,501.24, 28,292.93 and 12,545.01 is: 17,312.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.24 : 28,292.93 = 12,545.01 : x
  2. Step 2: Convert to fraction form
    20,501.24/28,292.93 = 12,545.01/x
  3. Step 3: Cross multiply
    20,501.24x = 28,292.93 × 12,545.01
  4. Step 4: Simplify right side
    20,501.24x = 354,935,074.10
  5. Step 5: Solve for x
    x = 354,935,074.10/20,501.24
  6. Step 6: Final answer
    x = 17,312.86

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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.