Home / 28,013,520.71-38,658,727.17-15,624,416.61

Finding the Fourth Proportional to 28,013,520.71, 38,658,727.17 and 15,624,416.61

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Solution

The fourth proportional to 28,013,520.71, 38,658,727.17 and 15,624,416.61 is: 21,561,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013,520.71 : 38,658,727.17 = 15,624,416.61 : x
  2. Step 2: Convert to fraction form
    28,013,520.71/38,658,727.17 = 15,624,416.61/x
  3. Step 3: Cross multiply
    28,013,520.71x = 38,658,727.17 × 15,624,416.61
  4. Step 4: Simplify right side
    28,013,520.71x = 604,020,058,916,406.25
  5. Step 5: Solve for x
    x = 604,020,058,916,406.25/28,013,520.71
  6. Step 6: Final answer
    x = 21,561,733.18

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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.