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Finding the Fourth Proportional to 19,030.51, 28,545.98 and 8,501.07

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Solution

The fourth proportional to 19,030.51, 28,545.98 and 8,501.07 is: 12,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,030.51 : 28,545.98 = 8,501.07 : x
  2. Step 2: Convert to fraction form
    19,030.51/28,545.98 = 8,501.07/x
  3. Step 3: Cross multiply
    19,030.51x = 28,545.98 × 8,501.07
  4. Step 4: Simplify right side
    19,030.51x = 242,671,374.20
  5. Step 5: Solve for x
    x = 242,671,374.20/19,030.51
  6. Step 6: Final answer
    x = 12,751.70

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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.