Home / 31,545.08-47,386.31-19,070.98

Finding the Fourth Proportional to 31,545.08, 47,386.31 and 19,070.98

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Solution

The fourth proportional to 31,545.08, 47,386.31 and 19,070.98 is: 28,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,545.08 : 47,386.31 = 19,070.98 : x
  2. Step 2: Convert to fraction form
    31,545.08/47,386.31 = 19,070.98/x
  3. Step 3: Cross multiply
    31,545.08x = 47,386.31 × 19,070.98
  4. Step 4: Simplify right side
    31,545.08x = 903,703,156.46
  5. Step 5: Solve for x
    x = 903,703,156.46/31,545.08
  6. Step 6: Final answer
    x = 28,647.99

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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.